Set default signature verification for supported distributions (#1246)

* Default signature verification for supported distributions

* Delegate signature defaults to installers

action.yml

@@ -41,7 +41,6 @@ inputs:
   verify-signature:
     description: 'Verify downloaded Java package signatures when supported by the selected distribution'
     required: false
-    default: false
   verify-signature-public-key:
     description: 'ASCII-armored GPG public key used to verify the downloaded package signature. Overrides the default bundled key for the selected distribution.'
     required: false