Fix regexp for version

JohnPreston · JohnPreston · commit 92a09b8901fb · 2022-05-18T07:40:12.000+01:00
diff --git a/pyproject.toml b/pyproject.toml
@@ -100,7 +100,7 @@ regex = '''
   (?P<minor>\d+)
   \.
   (?P<patch>\d+)
-  (?:[-.](?P<rc>[\S]+))?
+  (?:(?P<rc>[\S]+))?
   '''
 
 [tool.tbump.git]
