call out the snappy version in the warning message

[liferoad]

Fixes #33407

This only polishes the warning message. The better fix is probably to get rid of snappy and switch to the crc32c Python library if TFRecord can work.

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.29%. Comparing base (1db2a5a) to head (184a18d).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #34225   +/-   ##
=========================================
  Coverage     56.28%   56.29%           
  Complexity     3286     3286           
=========================================
  Files          1166     1166           
  Lines        178704   178767   +63     
  Branches       3398     3398           
=========================================
+ Hits         100591   100633   +42     
- Misses        74860    74881   +21     
  Partials       3253     3253           

Flag	Coverage Δ
python	81.27% <ø> (-0.02%)	⬇️

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