chore: fix tag_pattern in cliff.toml (#330)

Author: molpopgen

cliff.toml

@@ -53,7 +53,7 @@ commit_parsers = [
 # filter out the commits that are not matched by commit parsers
 filter_commits = true
 # glob pattern for matching git tags
-tag_pattern = "v?[0-9]*"
+tag_pattern = "v[0-9]*"
 # regex for skipping tags
 skip_tags = "v0.1.0-beta.1"
 # regex for ignoring tags