Update actions/cache action to v5

Author: renovate[bot]

.github/workflows/compile_demo_platfromio.yml

@@ -29,7 +29,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: |
             ~/.cache/pip