[release/v1.27.x] Prepare release 1.27.0 (open-telemetry#5521)

[release/v1.26.x] Prepare release 1.26.0 (open-telemetry#5426)

[release/v1.25.x] Prepare release 1.25.0 (open-telemetry#5358)

Skip build and publish step to finish release (open-telemetry#5283)

Prepare release 1.23.1 (open-telemetry#5226)

Prepare release 1.23.0 (open-telemetry#5199)

Prepare release 1.22.0 (open-telemetry#5093)

[release/v1.21.x] Prepare release 1.21.0 (open-telemetry#5035)

* Prepare release 1.21.0

* Fix version-dependent test

Co-authored-by: Jack Berg <jberg@newrelic.com>

Prepare release 1.20.1 (open-telemetry#4956)

Prepare release 1.20.0 (open-telemetry#4940)