chore: Release v0.34.0b1

[MeltyBot]

Prepare MeltanoSDK v0.34.0b1 for release.

Checklist:

• Check that the right version is set in all the files.
• Groom the changelog for wording or missing entries.
• Merge this PR once everything looks good.

Release Draft

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📚 Documentation preview 📚: https://meltano-sdk--2075.org.readthedocs.build/en/2075/

[codspeed-hq]

CodSpeed Performance Report

Merging #2075 will not alter performance

_{Comparing release/v0.34.0b1 (fcb9b29) with main (24127d0)}

Summary

✅ 4 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (24127d0) 87.65% compared to head (1b4412b) 87.65%.

❗ Current head 1b4412b differs from pull request most recent head fcb9b29. Consider uploading reports for the commit fcb9b29 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2075   +/-   ##
=======================================
  Coverage   87.65%   87.65%           
=======================================
  Files          60       60           
  Lines        4940     4940           
  Branches     1006     1006           
=======================================
  Hits         4330     4330           
  Misses        429      429           
  Partials      181      181           

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