Bump syn from 2.0.114 to 2.0.117

[dependabot]

Bumps syn from 2.0.114 to 2.0.117.

Release notes

Sourced from syn's releases.

2.0.117

• Fix parsing of self:: pattern in first function argument (#1970)

2.0.116

• Optimize parse_fn_arg_or_variadic for less lookahead on erroneous receiver (#1968)

2.0.115

• Enable GenericArgument::Constraint parsing in non-full mode (#1966)

Commits

• 7bcb37c Release 2.0.117
• 9c6e7d3 Merge pull request #1970 from dtolnay/receiver
• 019a848 Fix self:: pattern in first function argument
• 23f54f3 Update test suite to nightly-2026-02-18
• b99b9a6 Unpin CI miri toolchain
• a62e54a Release 2.0.116
• 5a8ed9f Merge pull request #1968 from dtolnay/receiver
• 813afcc Optimize parse_fn_arg_or_variadic for less lookahead on erroneous receiver
• c172150 Add regression test for issue 1718
• 0071ab3 Ignore type_complexity clippy lint
• Additional commits viewable in compare view

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[Ortham]

I'm closing this PR as the changes between the current and new versions don't include anything that's relevant or of interest to me.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.