Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

* Do not spam when we can not send a message to a job

There are legal reasons why a job ended. If a job failed, the error is
logged. So, we don't need to log an error when we can not send a message
to a job.

* Review feedback

* Rework `ConnectionsRequests`

Instead of implementing the `Stream` trait, this struct now provides a
function `next()`. This enables us to encode into the type system that
it will always return a value or block indefinitely.

* Review feedback

* Bump version from v0.8.26 to v0.8.27

* bump substrate

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.117 to 1.0.118.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.117...v1.0.118

)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Because of a bug in the test script, we didn't stopped CI when the main
tests are failed.

* add instructions for extrinsic verification

* update release documentation

Bumps [smallvec](https://github.com/servo/rust-smallvec) from 1.5.0 to 1.5.1.
- [Release notes](https://github.com/servo/rust-smallvec/releases)
- [Commits](https://github.com/servo/rust-smallvec/compare/v1.5.0...v1.5.1

)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Add an upper number of maximum parallel runtime api requests

Instead of spawning all runtime api requests in the background and using
all wasm instances. This pr adds a maximum number of parallel requests.

* Update node/core/runtime-api/src/lib.rs

Co-authored-by: Sergei Shulepov <[email protected]>

* Review feedback

* Increase instances

* Add warning

* Update node/core/runtime-api/src/lib.rs

Co-authored-by: Sergei Shulepov <[email protected]>

Co-authored-by: Sergei Shulepov <[email protected]>