feat: use armored gpg signature

script/release

@@ -39,7 +39,7 @@ function build {
 
   if [ ! -z "${GPG_SIGNING_KEY}" ]; then
     echo "signing '$destdir/$name' with gpg key '$GPG_SIGNING_KEY'..."
-    gpg --sign --default-key "${GPG_SIGNING_KEY}" --detach-sign --output "$destdir/$name.sig" "$destdir/$name"
+    gpg --sign --default-key "${GPG_SIGNING_KEY}" --armor --detach-sign --output "$destdir/$name.sig" "$destdir/$name"
   fi
 }