chore(deps): update rust crate similar to v3.1.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
similar	dependencies	patch	3.1.0 → 3.1.1

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Release Notes

mitsuhiko/similar (similar)

v3.1.1

Compare Source

• Fixed DiffOp cursor positions when compacting adjacent inserts/deletes and
  in Algorithm::Histogram full-replacement output, ensuring operations form
  contiguous ranges. #​95
• Renamed sample diff input files to a lexicographic
  caseNN.01.before_* / caseNN.02.after_* scheme.

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[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/date/resolution (passes in this run but fails in the 'main' branch)
Skipping an intermittent issue tests/pr/bounded-memory (passes in this run but fails in the 'main' branch)