Bump actions/cache from 3.0.2 to 3.0.6 (#72)

Bumps [actions/cache](https://github.com/actions/cache) from 3.0.2 to 3.0.6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3.0.2...v3.0.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: 1.16
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].6
         id: go-cache
         with:
           path: ~/go/pkg/mod
@@ -46,7 +46,7 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: 1.16
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].6
         id: go-cache
         with:
           path: ~/go/pkg/mod
@@ -71,7 +71,7 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: 1.16
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].6
         id: go-cache
         with:
           path: ~/go/pkg/mod
@@ -101,7 +101,7 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: 1.16
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].6
         id: go-cache
         with:
           path: ~/go/pkg/mod