Bump actions/cache from 2 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2...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/build_test.yml

@@ -18,7 +18,7 @@ jobs:
         echo "::set-output name=cache::$(go env GOCACHE)"
         echo "::set-output name=mod-cache::$(go env GOMODCACHE)"
     - name: Cache go modules
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ${{ steps.cache-paths.outputs.cache }}

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
         echo "::set-output name=cache::$(go env GOCACHE)"
         echo "::set-output name=mod-cache::$(go env GOMODCACHE)"
     - name: Cache go modules
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ${{ steps.go-env.outputs.cache }}