Bump proc-macro2 from 1.0.67 to 1.0.68

[dependabot[bot]]

Bumps proc-macro2 from 1.0.67 to 1.0.68.

Release notes

Sourced from proc-macro2's releases.

1.0.68

• Fix panic in Span::source_text() when source contains multibyte characters (#408)

Commits

• a3e94df Release 1.0.68
• 299d8ff Merge pull request #409 from dtolnay/sourcetext
• 7f5533d Account for multibyte chars in source_text() computation
• 4fe2326 Add source_text() test with mulitbyte char
• 07bb590 Remove ancient todo comments
• 7921d32 Test docs.rs documentation build in CI
• See full diff in compare view

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[codecov[bot]]

Codecov Report

Merging #365 (c91c7ca) into main (9861c25) will not change coverage. Report is 1 commits behind head on main. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #365   +/-   ##
=======================================
  Coverage   83.20%   83.20%           
=======================================
  Files          36       36           
  Lines        2954     2954           
  Branches      275      275           
=======================================
  Hits         2458     2458           
  Misses        376      376           
  Partials      120      120           

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[dependabot[bot]]

Superseded by #367.