Update actions/cache version to v4 in continuous.yml

Author: zfergus

.github/workflows/continuous.yml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache
@@ -145,7 +145,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-CUDA-cache