feat(profiler): support performance profiling via pprof (#768)

* feat: support performance profiling via pprof

This adds support for performance profiling that allows for finding the bottlenecks and performance optimizations.

It can be enabled via `profiler` feature and the `bench` build profile.

```shell
cargo build --profile=bench --features=profiler
```

* refactor(profiling): clean up implementation

* feat(ci): run profiler

* fix(ci): fetch all the history for profiler

* docs(website): add profiling docs

---------

Co-authored-by: Orhun Parmaksız <[email protected]>

.github/workflows/ci.yml

@@ -183,3 +183,21 @@ jobs:
                   exit 1
               fi
           done
+
+  profiler:
+    name: Run profiler
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Run profiler
+        run: cargo run --profile bench --features profiler -- --no-exec
+      - name: Upload report
+        uses: actions/upload-artifact@v4
+        with:
+          name: git-cliff.${{ github.run_id }}-profiler-report
+          path: git-cliff.**.flamegraph.svg

.gitignore

@@ -3,3 +3,5 @@
 
 # Backup files generated by rustfmt
 **/*.rs.bk
+
+*.flamegraph.svg