Relax tag format requirements to trigger release build

Author: stariy95

.github/workflows/release-prepare.yml

@@ -3,7 +3,7 @@ name: 'prepare release'
 on:
   push:
     tags:
-      - '[0-9]+.[0-9]+.?[ab]?[0-9]+'
+      - '[0-9]+.[0-9]+*'
 permissions:
   # allow a write access to GitHub Releases
   contents: write