workflows/integration: trailofbits/gh-action-pip-audit is now pypa/gh-action-pip-audit

[woodruffw]

No functional changes, so I didn't fill out the checklist. But let me know if you'd like me to!

Closes #2379.

Signed-off-by: William Woodruff william@trailofbits.com

[codecov-commenter]

Codecov Report

Merging #2380 (13169b4) into master (510d8fe) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2380      +/-   ##
==========================================
- Coverage   92.24%   92.20%   -0.05%     
==========================================
  Files         111      111              
  Lines       28814    28814              
==========================================
- Hits        26579    26567      -12     
- Misses       2235     2247      +12     

Impacted Files	Coverage Δ
redis/asyncio/cluster.py	90.28% <0.00%> (-0.35%)	⬇️
tests/test_asyncio/test_search.py	98.43% <0.00%> (-0.32%)	⬇️
tests/test_cluster.py	96.85% <0.00%> (-0.24%)	⬇️
redis/asyncio/client.py	92.09% <0.00%> (-0.18%)	⬇️
tests/test_asyncio/test_pubsub.py	99.32% <0.00%> (-0.17%)	⬇️
tests/test_asyncio/test_cluster.py	97.28% <0.00%> (-0.14%)	⬇️

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