[azservicebus] Fixing bug from #23893, where a message could be received in the mess… #23929
+261
−95
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It was possible for the message releaser to receive a message, but not release it. When that happened the message would be locked by SB, but not released, so you'd see it constantly get redelivered but never see it in your code.
Added some tests for this scenario, and a lot of comments to explain how we (now) avoid it.
Also, go get -u'd all the deps, just to keep pace.
Fixes #23893