Release v0.40.0 (#2356)

## Version v0.40.0

### Added
- [2347](#2347): Add GraphQL
complexity histogram to metrics.
- [2350](#2350): Added a new
CLI flag `graphql-number-of-threads` to limit the number of threads used
by the GraphQL service. The default value is `2`, `0` enables the old
behavior.
- [2335](#2335): Added CLI
arguments for configuring GraphQL query costs.

### Fixed
- [2345](#2345): In PoA
increase priority of block creation timer trigger compare to txpool
event management

### Changed
- [2334](#2334): Prepare the
GraphQL service for the switching to `async` methods.
- [2310](#2310): New metrics:
"The gas prices used in a block" (`importer_gas_price_for_block`), "The
total gas used in a block" (`importer_gas_per_block`), "The total fee
(gwei) paid by transactions in a block" (`importer_fee_per_block_gwei`),
"The total number of transactions in a block"
(`importer_transactions_per_block`), P2P metrics for swarm and protocol.
- [2340](#2340): Avoid long
heavy tasks in the GraphQL service by splitting work into batches.
- [2341](#2341): Updated all
pagination queries to work with the async stream instead of the sync
iterator.
- [2350](#2350): Limited the
number of threads used by the GraphQL service.

#### Breaking
- [2310](#2310): The `metrics`
command-line parameter has been replaced with `disable-metrics`. Metrics
are now enabled by default, with the option to disable them entirely or
on a per-module basis.
- [2341](#2341): The maximum
number of processed coins from the `coins_to_spend` query is limited to
`max_inputs`.

## What's Changed
* fix(gas_price_service): service name and unused trait impl by @rymnc
in #2317
* Do not require build of docker images to pass CI by @xgreenx in
#2342
* Prepare the GraphQL service for the switching to `async` methods by
@xgreenx in #2334
* Limited the number of threads used by the GraphQL service by @xgreenx
in #2350
* Increase priority of timer over txpool event by @xgreenx in
#2345
* Disable flaky `test_poa_multiple_producers` test by @rafal-ch in
#2353
* feat: CLI arguments for configuring GraphQL query costs. by @netrome
in #2335
* Add graphql query complexity histogram metric by @AurelienFT in
#2349
* Updated all pagination queries to work with the `Stream` instead of
`Iterator` by @xgreenx in
#2341
* Avoid long heavy tasks in the GraphQL service by @xgreenx in
#2340
* Add more metrics by @rafal-ch in
#2310


**Full Changelog**:
v0.39.0...v0.40.0

---------

Co-authored-by: Rafał Chabowski <[email protected]>
Co-authored-by: acerone85 <[email protected]>
Co-authored-by: rymnc <[email protected]>
Co-authored-by: Rafał Chabowski <[email protected]>

CHANGELOG.md

@@ -6,7 +6,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [Version 0.40.0]
+
 ### Added
+- [2347](https://github.com/FuelLabs/fuel-core/pull/2347): Add GraphQL complexity histogram to metrics.
 - [2350](https://github.com/FuelLabs/fuel-core/pull/2350): Added a new CLI flag `graphql-number-of-threads` to limit the number of threads used by the GraphQL service. The default value is `2`, `0` enables the old behavior.
 - [2335](https://github.com/FuelLabs/fuel-core/pull/2335): Added CLI arguments for configuring GraphQL query costs.
 
@@ -16,19 +19,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Changed
 - [2334](https://github.com/FuelLabs/fuel-core/pull/2334): Prepare the GraphQL service for the switching to `async` methods.
 - [2310](https://github.com/FuelLabs/fuel-core/pull/2310): New metrics: "The gas prices used in a block" (`importer_gas_price_for_block`), "The total gas used in a block" (`importer_gas_per_block`), "The total fee (gwei) paid by transactions in a block" (`importer_fee_per_block_gwei`), "The total number of transactions in a block" (`importer_transactions_per_block`), P2P metrics for swarm and protocol.
-
-#### Breaking
-- [2310](https://github.com/FuelLabs/fuel-core/pull/2310): The `metrics` command-line parameter has been replaced with `disable-metrics`. Metrics are now enabled by default, with the option to disable them entirely or on a per-module basis.
-- [2341](https://github.com/FuelLabs/fuel-core/pull/2341): Updated all pagination queries to work with the async stream instead of the sync iterator.
 - [2340](https://github.com/FuelLabs/fuel-core/pull/2340): Avoid long heavy tasks in the GraphQL service by splitting work into batches.
+- [2341](https://github.com/FuelLabs/fuel-core/pull/2341): Updated all pagination queries to work with the async stream instead of the sync iterator.
 - [2350](https://github.com/FuelLabs/fuel-core/pull/2350): Limited the number of threads used by the GraphQL service.
 
 #### Breaking
+- [2310](https://github.com/FuelLabs/fuel-core/pull/2310): The `metrics` command-line parameter has been replaced with `disable-metrics`. Metrics are now enabled by default, with the option to disable them entirely or on a per-module basis.
 - [2341](https://github.com/FuelLabs/fuel-core/pull/2341): The maximum number of processed coins from the `coins_to_spend` query is limited to `max_inputs`.
 
-### Added
-- [2347](https://github.com/FuelLabs/fuel-core/pull/2347): Add GraphQL complexity histogram
-
 ## [Version 0.39.0]
 
 ### Added