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

Author: renovate[bot]

.github/workflows/build.yml

@@ -5,7 +5,7 @@ jobs:
   gotify:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version: 1.24.x
       - uses: actions/setup-node@v4