Adjust release tag regex

Author: jeremy-visionaid

.github/workflows/release-nuget.yml

@@ -3,7 +3,7 @@ name: Create a (Pre)release on NuGet
 on:
   push:
     tags:
-    - "v[0-9]+.[0-9]+.[0-9]+(-(alpha|beta|experimental|preview|rc).)?[0-9]+"
+    - "v[0-9]+.[0-9]+.[0-9]+(-(alpha|beta|experimental|preview|rc).[0-9]+)?"
 
 jobs:
   release-nuget: