fix version bump incantation to keep working next time

Author: karenetheridge

dist.ini

@@ -192,7 +192,7 @@ commit_msg = %N-%v%t%n%n%c
 [Git::Tag]
 
 [Run::AfterRelease]
-run = perl -MVersion::Next -p -i -e'BEGIN { $ENV{NEXT_VERSION} = Version::Next::next_version("1.72") } s/.VERSION = .\K1.72/$ENV{NEXT_VERSION}/;' `find lib -type f`
+run = perl -MVersion::Next -p -i -e'BEGIN { $ENV{NEXT_VERSION} = Version::Next::next_version("%v") } s/.VERSION = .\K%v/$ENV{NEXT_VERSION}/;' `find lib -type f`
 
 [Git::Commit / post-release commit]
 allow_dirty_match = ^lib/.*\.pm$