build(deps): Update Rust crate syn to v2.0.117

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
syn	workspace.dependencies	patch	2.0.116 → 2.0.117

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Release Notes

dtolnay/syn (syn)

v2.0.117

Compare Source

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

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[forkline-bot]

Successfully resolved the merge conflict in PR #156:

1. Rebased the head branch renovate/syn-2.x-lockfile onto the latest master (which includes the clap update)
2. Resolved the Cargo.lock conflict by accepting the master version and updating syn to version 2.0.117
3. Verified all 26 syn 2.x references now point to version 2.0.117
4. Pushed the resolved changes to the remote branch

The PR is now ready for merge with no conflicts. The only change is the syn dependency update from 2.0.116 to 2.0.117.