[TEST] make testTimeoutSendExceptionWithDelayedResponse more reliable on slow systems
[DOCS] Make snapshot repository examples consistent
[TEST] Use startNodesAsync in unicast discovery tests.
Update allocation.asciidoc
[BUILD] Fail release if test have AwaitsFix annotations

Note this commit upgrades Forbidden APIs to version 1.5

Closes #5807
Add a site plugin into list

Howdy,

Not sure if this is kosher but I would like to add my site plugin to the list in the docs.