chore(deps): update actions/setup-go action to v6

Author: renovate[bot]

.github/workflows/scip-examples.yaml

@@ -76,7 +76,7 @@ jobs:
 
       - name: Install Go
         if: ${{ matrix.target.scip_binary == 'scip-go' }}
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with: { go-version-file: 'go.mod' }
 
       - name: Cache Maven dependencies