Update actions/cache action to v6 (#451)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
         run: yarn install --prefer-offline --frozen-lockfile
 
       - name: Cache node_modules
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         id: cache-node-modules
         with:
           path: |
@@ -67,7 +67,7 @@ jobs:
           node-version: ${{ env.node-version }}
 
       - name: Restore node_modules cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             node_modules

.github/workflows/operation-location-migration.yml

@@ -23,7 +23,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Restore node_modules cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             node_modules

.github/workflows/typescript-resolver-files-e2e.yml

@@ -28,7 +28,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Restore node_modules cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             node_modules

.github/workflows/typescript-resolver-files.yml

@@ -23,7 +23,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Restore node_modules cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             node_modules