GoReleaser: Stop building apks

GemFury informs me that they have errors.

Author: vHanda

.goreleaser.yaml

@@ -121,7 +121,6 @@ nfpms:
     license: Apache-2.0
     maintainer: Vishesh Handa <[email protected]>
     formats:
-      - apk
       - deb
       - rpm
     dependencies: