chore(deps): update rust crate proc-macro2 to v1.0.106

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
proc-macro2	dependencies	patch	1.0.105 → 1.0.106

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Release Notes

dtolnay/proc-macro2 (proc-macro2)

v1.0.106

Compare Source

• Optimize Span::byte_range (#​530)

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[github-actions]

GNU testsuite comparison:

GNU test failed: tests/sort/sort-debug-keys. tests/sort/sort-debug-keys is passing on 'main'. Maybe you have to rebase?
Skipping an intermittent issue tests/shuf/shuf-reservoir (passes in this run but fails in the 'main' branch)
Skipping an intermittent issue tests/sort/sort-stale-thread-mem (passes in this run but fails in the 'main' branch)
Congrats! The gnu test tests/env/env-signal-handler is now passing!