Bump actions/cache from 2.1.7 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.7 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](actions/cache@v2.1.7...v3)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/benchmark.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Run benchmark
         run: go test -bench=. ./... | tee output.txt
       - name: Download previous benchmark data
-        uses: actions/cache@v2.1.7
+        uses: actions/cache@v3
         with:
           path: ./cache
           key: ${{ runner.os }}-benchmark