Investigate intermittent test failure in write_buffer test

[praveen-influx]

When running tests locally ran into the following test failure,

--- STDERR:              influxdb3_write write_buffer::tests::last_cache_create_and_delete_is_durable ---
thread 'write_buffer::tests::last_cache_create_and_delete_is_durable' panicked at influxdb3_write/src/write_buffer/mod.rs:850:10:
called `Result::unwrap()` on an `Err` value: WalError(ObjectStoreError(NotFound { path: "test_host/wal/00000000004.wal", source: NoDataInMemory { path: "test_host/wal/00000000004.wal" } }))
stack backtrace:
   0: rust_begin_unwind
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:652:5
   1: core::panicking::panic_fmt
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/panicking.rs:72:14
   2: core::result::unwrap_failed
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/result.rs:1679:5
   3: core::result::Result<T,E>::unwrap
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/result.rs:1102:23
   4: influxdb3_write::write_buffer::tests::last_cache_create_and_delete_is_durable::{{closure}}
             at ./src/write_buffer/mod.rs:835:20
   5: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/future/future.rs:123:9
   6: <tracing::instrument::Instrumented<T> as core::future::future::Future>::poll
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tracing-0.1.40/src/instrument.rs:321:9
   7: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/future/future.rs:123:9
   8: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:696:57
   9: tokio::runtime::coop::with_budget
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/coop.rs:107:5
  10: tokio::runtime::coop::budget
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/coop.rs:73:5
  11: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:696:25
  12: tokio::runtime::scheduler::current_thread::Context::enter
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:423:19
  13: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:695:36
  14: tokio::runtime::scheduler::current_thread::CoreGuard::enter::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:774:68
  15: tokio::runtime::context::scoped::Scoped<T>::set
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/context/scoped.rs:40:9
  16: tokio::runtime::context::set_scheduler::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/context.rs:180:26
  17: std::thread::local::LocalKey<T>::try_with
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/thread/local.rs:283:12
  18: std::thread::local::LocalKey<T>::with
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/thread/local.rs:260:9
  19: tokio::runtime::context::set_scheduler
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/context.rs:180:9
  20: tokio::runtime::scheduler::current_thread::CoreGuard::enter
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:774:27
  21: tokio::runtime::scheduler::current_thread::CoreGuard::block_on
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:683:19
  22: tokio::runtime::scheduler::current_thread::CurrentThread::block_on::{{closure}}
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:191:28
  23: tokio::runtime::context::runtime::enter_runtime
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/context/runtime.rs:65:16
  24: tokio::runtime::scheduler::current_thread::CurrentThread::block_on
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/scheduler/current_thread/mod.rs:179:9
  25: tokio::runtime::runtime::Runtime::block_on_inner
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/runtime.rs:361:47
  26: tokio::runtime::runtime::Runtime::block_on
             at /home/praveen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.40.0/src/runtime/runtime.rs:335:13
  27: influxdb3_write::write_buffer::tests::last_cache_create_and_delete_is_durable
             at ./src/write_buffer/mod.rs:852:9
  28: influxdb3_write::write_buffer::tests::last_cache_create_and_delete_is_durable::{{closure}}
             at ./src/write_buffer/mod.rs:704:55
  29: core::ops::function::FnOnce::call_once
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:250:5
  30: core::ops::function::FnOnce::call_once
             at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

The same test has failed in CI as well,
https://app.circleci.com/pipelines/github/influxdata/influxdb/41703/workflows/da14ee4d-e712-42c2-a5b9-f5cba67c1af1/jobs/389885