feat: Configure bumpversion for 'release' command

Author: softwareengineerprogrammer

.bumpversion.cfg

@@ -3,7 +3,7 @@ current_version = 3.9.29-alpha.0
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<prerelease_label>[a-z]+)\.(?P<prerelease>\d+))?
-serialize = 
+serialize =
 	{major}.{minor}.{patch}-{prerelease_label}.{prerelease}
 	{major}.{minor}.{patch}
 
@@ -12,7 +12,7 @@ first_value = 0
 
 [bumpversion:part:prerelease_label]
 optional_value = rc
-values = 
+values =
 	alpha
 	beta
 	rc
@@ -40,3 +40,8 @@ replace = __version__ = '{new_version}'
 [bumpversion:file:.cookiecutterrc]
 search = version: {current_version}
 replace = version: {new_version}
+
+[bumpversion:part:release]
+# This is a "virtual" part. It's not in the version string itself.
+# Its purpose is to enable the 'bumpversion release' command,
+# which will intelligently drop the pre-release suffix.