build(deps): bump actions/cache from 5 to 6 (#110)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/unit-test.yml

@@ -19,7 +19,7 @@ jobs:
             - name: Lint code
               uses: golangci/golangci-lint-action@v9
             - name: Cache Go modules
-              uses: actions/cache@v5
+              uses: actions/cache@v6
               with:
                 path: ~/go/pkg/mod
                 key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}