[PROF-10967] Fix missing suppressions after PR 4161 got merged

[ivoanjo]

What does this PR do?

This PR updates the suppressions file to make the "Test for memory leaks" check pass, after #4161 broke it by upgrading the Ruby version used to run this check.

Motivation:

Make sure master is squeaky clean.

Change log entry

(Not relevant to customers)

Additional Notes:

This was supposed to go together with #4161, but even though the "Test for memory leaks" failed, the auto-merge still merged my PR while I was preparing this extra commit to make it pass CI.

How to test the change?

Validate the "Test for memory leaks", CI validation passes again.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.78%. Comparing base (c5232cb) to head (12d61d0).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4162   +/-   ##
=======================================
  Coverage   97.78%   97.78%           
=======================================
  Files        1353     1353           
  Lines       81796    81796           
  Branches     4143     4143           
=======================================
+ Hits        79981    79984    +3     
+ Misses       1815     1812    -3     

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[ivoanjo]

Aargh what a minefield, this failed again because Ruby 3.4.0-preview2 ships a buggy rubygems... Let me try to put a workaround in place.

[ivoanjo]

And we have a green build! https://github.com/DataDog/dd-trace-rb/actions/runs/12032142202/job/33543279424?pr=4162

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-11-26 14:09:58

Comparing candidate commit d1e2d72 in PR branch ivoanjo/fix-suppresions-after-pr-4161 with baseline commit c5232cb in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 31 metrics, 2 unstable metrics.