Prepare release 1.34.1/0.55b1 (open-telemetry#4628)

Prepare release 1.34.0/0.55b0 (open-telemetry#4612)

Fix flaky test that tests lots of threads calling emit. Make sure tes…

…ts shutdown the batch exporter. (open-telemetry#4600)

* Initital commit to imporve shutdown behavior.

* Remove print statements and changes from shutdown branch

* Remove unused imports/deps

* fix lint issue

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Co-authored-by: Riccardo Magliocchetti <[email protected]>

Prepare release 1.33.1/0.54b1 (open-telemetry#4590)

Prepare release 1.33.0/0.54b0 (open-telemetry#4573)

[release/v1.32.x-0.53bx] Prepare release 1.32.1/0.53b1 (open-telemetr…

…y#4546)

* Prepare release 1.32.1/0.53b1

* Move workflows to opentelemetrybot/prepare-release-1.32.1-0.53b1

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Co-authored-by: Riccardo Magliocchetti <[email protected]>

[release/v1.32.x-0.53bx] Prepare release 1.32.0/0.53b0 (open-telemetr…

…y#4538)

* Prepare release 1.32.0/0.53b0

* Move CONTRIB_REPO_SHA to opentelemetrybot/prepare-release-1.32.0-0.53b0

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Co-authored-by: Riccardo Magliocchetti <[email protected]>

Prepare release 1.31.1/0.52b1 (open-telemetry#4496)

[release/v1.31.x-0.52bx] Prepare release 1.31.0/0.52b0 (open-telemetr…

…y#4481)

* Prepare release 1.31.0/0.52b0

* Update contrib sha

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Co-authored-by: Riccardo Magliocchetti <[email protected]>

[release/v1.30.x-0.51bx] Prepare release 1.30.0/0.51b0 (open-telemetr…

…y#4408)