Bump egor-tensin/setup-clang from 1.4 to 2.1 (#2098)

Bumps [egor-tensin/setup-clang](https://github.com/egor-tensin/setup-clang) from 1.4 to 2.1.
- [Release notes](https://github.com/egor-tensin/setup-clang/releases)
- [Commits](egor-tensin/setup-clang@ef434b4...471a6f8)

---
updated-dependencies:
- dependency-name: egor-tensin/setup-clang
  dependency-version: '2.1'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/sanitizer.yml

@@ -52,7 +52,7 @@ jobs:
         echo "ASAN_OPTIONS=alloc_dealloc_mismatch=0" >> $GITHUB_ENV
 
     - name: setup clang
-      uses: egor-tensin/setup-clang@ef434b41eb33a70396fb336b1bae39c76d740c3d # v1.4
+      uses: egor-tensin/setup-clang@471a6f8ef1d449dba8e1a51780e7f943572a3f99 # v2.1
       with:
         version: latest
         platform: x64