Bump actions/cache

Bumps [actions/cache](https://github.com/actions/cache) from 730dc31003a72af3c3b4bf51268c167ad4c67ad6 to 3.0.8. This release includes the previously tagged commit.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@730dc31...fd5de65)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
...

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

.github/workflows/build.yml

@@ -73,7 +73,7 @@ jobs:
         id: go-cache
         run: |
           echo "::set-output name=dir::$(go env GOCACHE)"
-      - uses: actions/cache@730dc31003a72af3c3b4bf51268c167ad4c67ad6
+      - uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77
         env:
           BASE_CACHE_KEY: "${{ github.job }}-${{ runner.os }}-\
             py${{ steps.setup-python.outputs.python-version }}-\
@@ -247,7 +247,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6
       - name: Cache Docker layers
-        uses: actions/cache@730dc31003a72af3c3b4bf51268c167ad4c67ad6
+        uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77
         env:
           BASE_CACHE_KEY: buildx-${{ runner.os }}-
         with:
@@ -322,7 +322,7 @@ jobs:
         with:
           python-version: 3.9
       - name: Cache testing environments
-        uses: actions/cache@730dc31003a72af3c3b4bf51268c167ad4c67ad6
+        uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77
         env:
           BASE_CACHE_KEY: "${{ github.job }}-${{ runner.os }}-\
             py${{ steps.setup-python.outputs.python-version }}-"
@@ -401,7 +401,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6
       - name: Cache Docker layers
-        uses: actions/cache@730dc31003a72af3c3b4bf51268c167ad4c67ad6
+        uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77
         env:
           BASE_CACHE_KEY: buildx-${{ runner.os }}-
         with: