Bump actions/cache from 4 to 5 (#501)

Author: dependabot[bot]

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
         go-version: ${{ steps.go_version.outputs.version }}
 
     - name: Cache Godel assets
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ~/.godel
         key: ${{ runner.os }}-godel-${{ hashFiles('godelw', 'godel/config/godel.yml') }}