MAINT: Bump the actions group with 1 update (#932)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci_cd.yml

@@ -133,7 +133,7 @@ jobs:
 
       - name: Restore images cache
         if: env.SKIP_UNSTABLE == 'false'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .\tests\integration\image_cache
           key: pyvista-image-cache-${{ runner.name }}-v-${{ env.RESET_IMAGE_CACHE }}-${{ hashFiles('pyproject.toml') }}
@@ -333,7 +333,7 @@ jobs:
 
       - name: Restore images cache
         if: env.SKIP_UNSTABLE == 'false'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: tests/integration/image_cache
           key: pyvista-image-cache-${{ runner.os }}-v-${{ env.RESET_IMAGE_CACHE }}-${{ hashFiles('pyproject.toml') }}
@@ -479,7 +479,7 @@ jobs:
           python -c "from ansys.geometry.core.connection.validate import validate; validate()"
 
       - name: Restore images cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .\tests\integration\image_cache
           key: pyvista-image-cache-${{ runner.os }}-v-${{ env.RESET_IMAGE_CACHE }}-${{ hashFiles('pyproject.toml') }}
@@ -564,7 +564,7 @@ jobs:
           python -c "from ansys.geometry.core.connection.validate import validate; validate()"
 
       - name: Restore images cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .\tests\integration\image_cache
           key: pyvista-image-cache-${{ runner.os }}-v-${{ env.RESET_IMAGE_CACHE }}-${{ hashFiles('pyproject.toml') }}