DPE-7968 Bump snap revision (remove python3-boto3 for CVE-2023-37920)

[taurus-forever]

Issue

Charmed PostgreSQL shipped no-longer necessary python3-boto3 with dependency to python3-certifi.
The last one has list of open CVEs, e.g. GHSA-xqr8-7jwr-rhp7.

Solution

Update snap without python3-boto3/python3-certifi.

Checklist

• I have added or updated any relevant documentation.
• I have cleaned any remaining cloud resources from my accounts.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.91%. Comparing base (b4f0004) to head (0ed2987).
⚠️ Report is 66 commits behind head on 16/edge.

Additional details and impacted files

@@           Coverage Diff            @@
##           16/edge    #1108   +/-   ##
========================================
  Coverage    64.91%   64.91%           
========================================
  Files           17       17           
  Lines         4275     4275           
  Branches       656      656           
========================================
  Hits          2775     2775           
  Misses        1333     1333           
  Partials       167      167           

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