Update actions/cache action to v4.2.0

Author: renovate[bot]

.github/workflows/build_with_s2e.yml

@@ -56,7 +56,7 @@ jobs:
 
       - name: cache extlib
         id: cache-extlib
-        uses: actions/cache@v4.1.2
+        uses: actions/cache@v4.2.0
         with:
           key: extlib-${{ runner.os }}-${{ hashFiles('./s2e-core/ExtLibraries/**') }}
           path: ./s2e-core/ExtLibraries

.github/workflows/pytest.yml

@@ -60,7 +60,7 @@ jobs:
 
     - name: Cache C2A devtools
       id: cache-c2a-devtools
-      uses: actions/cache@v4.1.2
+      uses: actions/cache@v4.2.0
       with:
         path: |
           ./examples/mobc/tools/bin