Stop using actions/cache@v4

To avoid the error "Cannot open: File exists"
cf. https://github.com/orgs/community/discussions/58174

actions/setup-go v4 or later has its own caching mechanism,
so we don't need actions/cache.

Signed-off-by: Takeshi Arabiki <takeshi.arabiki@datachain.jp>

Author: abicky

.github/workflows/test.yml

@@ -19,14 +19,6 @@ jobs:
         with:
           go-version: 1.21
         id: go
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cache/go-build
-            ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
       - name: Run Unit test
         run: make test
       - name: Build