patch release script fix

[aabmass]

• [release/v1.28.x-0.49bx] Prepare release 1.28.0/0.49b0 ([release/v1.28.x-0.49bx] Prepare release 1.28.0/0.49b0 #4246)
• Update release.yml
• Update .readthedocs.yml
• Fix: filter exemplar for observable instrument and export of exemplar without trace and span ids (Fix: filter exemplar for observable instrument and export of exemplar without trace and span ids #4251)
• opentelemetry-sdk: avoid recursion error with sdk disabled (opentelemetry-sdk: avoid recursion error with sdk disabled #4259)
• Update prepare-patch-release.yml
• [release/v1.28.x-0.49bx] Prepare release 1.28.1/0.49b1 ([release/v1.28.x-0.49bx] Prepare release 1.28.1/0.49b1 #4262)
• Remove updating CHANGELOG step in release workflow (Remove updating CHANGELOG step in release workflow #4273) ([release/v1.28.x-0.49bx] Remove updating CHANGELOG step in release workflow (#4273) #4280)
• [release/v1.28.x-0.49bx] Support logs with no body (Support logs with no body #4276) ([release/v1.28.x-0.49bx] Support logs with no body (#4276) #4282)
• [release/v1.28.x-0.49bx] opentelemetry-sdk: setup EventLogger when initializing logging (opentelemetry-sdk: setup EventLogger when initializing logging #4270) ([release/v1.28.x-0.49bx] opentelemetry-sdk: setup EventLogger when initializing logging (#4270) #4283)
• Fix prepare patch release workflow (Fix prepare patch release workflow #4287)
• [v1.28.x-0.49bx] Fix eachdist.py patch release to not add extra space