[ci] Update cache action version

Author: ammaraskar

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           ref: "refs/pull/${{ github.event.number }}/merge"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v5
         with:
           path: ./Library
           key: Library