Add 13.3-1 sql paths for cluster_changes_block UDFs

[codeforall]

PR #8573 adds citus_cluster_changes_{block,unblock,block_status} UDFs to Citus 13.3-1 on release-13.2. For the upgrade chain 13.2 -> 13.3 -> 14.0 -> 14.1 to land these UDFs at the correct version and remain a no-op across the 14.0 <-> 14.1 transition, the same 13.3-1 sql paths must exist on release-14.0.

DESCRIPTION: PR description that will go into the change log, up to 78 characters

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.59%. Comparing base (3dd6f41) to head (0a56d1d).
⚠️ Report is 3 commits behind head on release-14.0.

Additional details and impacted files

@@               Coverage Diff                @@
##           release-14.0    #8574      +/-   ##
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- Coverage         88.71%   88.59%   -0.12%     
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  Files               287      288       +1     
  Lines             63725    64081     +356     
  Branches           8004     8043      +39     
================================================
+ Hits              56532    56775     +243     
- Misses             4896     4984      +88     
- Partials           2297     2322      +25     

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