Revert 52c929c

[karenyrx]

Description

1. This commit 52c929c causes an error in protobuf autogeneration:

> opensearch_api_tools@1.0.0 backward-compat
> ts-node tools/proto-convert/src/postprocessing/BackwardCompatibleWriter.ts --dry-run

/home/runner/work/opensearch-api-specification/opensearch-api-specification/node_modules/protobufjs/src/parse.js:96
        return Error("illegal " + (name || "token") + " '" + token + "' (" + (filename ? filename + ", " : "") + "line " + tn.line + ")");

So temporarily reverting for now as the fix is being worked on.

2. As additional followup, modifying GHA to trigger the protobuf autogeneration workflow whenever protobuf tooling-related files ( in the tools/proto-convert folder) have changed to ensure workflow still works with the PR changes.

Issues Resolved

List any issues this PR will resolve, e.g. Closes [...].

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.86%. Comparing base (eb0da83) to head (2fc274c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #388      +/-   ##
==========================================
- Coverage   91.90%   91.86%   -0.05%     
==========================================
  Files          15       15              
  Lines        1371     1364       -7     
  Branches      372      374       +2     
==========================================
- Hits         1260     1253       -7     
+ Misses        110      105       -5     
- Partials        1        6       +5     

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