chore(ga): bump actions/cache from 2.1.7 to 3 (#341)

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] <[email protected]>

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

.github/workflows/benchmarks.yml

@@ -30,7 +30,7 @@ jobs:
  extensions: bcmath, mbstring, intl, sodium, json
 
  - name: "caching dependencies"
- uses: "actions/cache@v2.1.7"
+ uses: "actions/cache@v3"
  with:
  path: |
  ~/.composer/cache

.github/workflows/mutation-tests.yml

@@ -30,7 +30,7 @@ jobs:
  extensions: bcmath, mbstring, intl, sodium, json
 
  - name: "caching dependencies"
- uses: "actions/cache@v2.1.7"
+ uses: "actions/cache@v3"
  with:
  path: |
  ~/.composer/cache

.github/workflows/unit-tests.yml

@@ -33,7 +33,7 @@ jobs:
  extensions: bcmath, mbstring, intl, sodium, json
 
  - name: "caching dependencies"
- uses: "actions/cache@v2.1.7"
+ uses: "actions/cache@v3"
  with:
  path: |
  ~/.composer/cache