Feature Request

Description

It seems the exclude_commit_patterns only match the commit title.

For a commit message like:

feat(ldap): add paginated search using VirtualListView and Server Side Sorting
    
skip-changelog
skip-build
skip-docs

Both options didn't exclude the commit:

[tool.semantic_release.changelog]
exclude_commit_patterns = [ 
   '''.*skip-changelog.*''',
   '''skip-changelog''',
]

Use cases

I would like to add a marker like skip-changelog to multiple commit messages, which make them be excluded from going into the changelog. The marker shouldn't be in the title of the commit message.

Possible implementation

Either allow by the above configuration, or provide a fixed identifier which makes the commit being ignored.