Bump proc-macro2 from 1.0.84 to 1.0.85 in the rust-dependencies group

Bumps the rust-dependencies group with 1 update: [proc-macro2](https://github.com/dtolnay/proc-macro2).


Updates `proc-macro2` from 1.0.84 to 1.0.85
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](dtolnay/proc-macro2@1.0.84...1.0.85)

---
updated-dependencies:
- dependency-name: proc-macro2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: rust-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>