github: remove warning during builds

for unknown reasons setup-go emits this warning on alpine linux only.

    Warning: There are no cache folders on the disk

disabling the cache should remove the warning.

Author: sni

.github/workflows/builds.yml

@@ -440,6 +440,7 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version-file: './go.mod'
+          cache: false
       - uses: actions/download-artifact@v4
         with:
           name: "${{ env.BIN }}"