Update the `README.md` file.

Update the report files.

Merge pull request #1454 from SpineEventEngine/1.x-configure-grpc-server

[1.x] Allow to configure the underlying gRPC server

Merge pull request #1435 from SpineEventEngine/release-1.8.0

Release 1.8.0

Improve the code alignment.

Synchronize the calls subscription observer (underlying `ServerCallIm…

…pl` isn't thread-safe).

Allow to set the `Executor` for `GrpcContainer`.
Bump the library version to `1.7.5`.

Synchronize the calls subscription observer (underlying `ServerCallIm…

…pl` isn't thread-safe).

Allow to set the `Executor` for `GrpcContainer`.
Bump the library version to `1.7.5`.

Merge pull request #1344 from SpineEventEngine/release/v1.7.0

Release v1.7.0

Merge pull request #1302 from SpineEventEngine/release-1.6.0

Release `1.6.0`

Merge pull request #1247 from SpineEventEngine/release-1.5.0

Release 1.5.0