chore(deps): bump actions-rust-lang/setup-rust-toolchain from 1 to 2

Bumps [actions-rust-lang/setup-rust-toolchain](https://github.com/actions-rust-lang/setup-rust-toolchain) from 1 to 2.
- [Release notes](https://github.com/actions-rust-lang/setup-rust-toolchain/releases)
- [Changelog](https://github.com/actions-rust-lang/setup-rust-toolchain/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions-rust-lang/setup-rust-toolchain/compare/v1...v2)

---
updated-dependencies:
- dependency-name: actions-rust-lang/setup-rust-toolchain
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/git-sync-test.yml

@@ -128,7 +128,7 @@ jobs:
         run: |
           cd backend && ./substitute_ee_code.sh --copy --dir ./windmill-ee-private
 
-      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - uses: actions-rust-lang/setup-rust-toolchain@v2
         with:
           cache-workspaces: backend
           toolchain: 1.97.0