chore: fix the version of actions/cache (#433)

Author: sanposhiho

.github/workflows/manifests-up-to-date.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
       - name: Restore cache
-        uses: actions/cache@v3.0.10
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/go-build

.github/workflows/test.yaml

@@ -23,7 +23,7 @@ jobs:
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
       - name: Restore cache
-        uses: actions/cache@v3.0.10
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/go-build