Bump actions/cache from 2 to 3 (#52)

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Build Binary
         run: make nginx-ns1-gslb
       - name: Cache Artifacts
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ${{ github.workspace }}/nginx-ns1-gslb
           key: nginx-ns1-gslb-${{ github.run_id }}-${{ github.run_number }}
@@ -67,7 +67,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v3
       - name: Fetch Cached Artifacts
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ${{ github.workspace }}/nginx-ns1-gslb
           key: nginx-ns1-gslb-${{ github.run_id }}-${{ github.run_number }}