fix: update search pattern for finding changelog sections

[edahlseng]

This pull request updates the search pattern for finding changelog sections to account for section headers that don't have anchors (in addition to section headers that do have anchors).

This change is needed because Conventional Changelog removed anchors from changelog templates. That change has not been included in the conventional-changelog dependency for standard-version yet, but will need to be addressed before it can be. Additionally, manually edited changelogs may not include these anchors, which means that this change will make it easier to adopt standard-version into existing projects.

[coveralls]

Coverage remained the same at 100.0% when pulling 8d55009 on edahlseng:regex into cbedc52 on conventional-changelog:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 8d55009 on edahlseng:regex into cbedc52 on conventional-changelog:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 8d55009 on edahlseng:regex into cbedc52 on conventional-changelog:master.

[bcoe]

@edahlseng 👋 sorry for the slow response times on code review, this project is in need of more maintainers. Feel free to join slack here:

http://devtoolscommunity.herokuapp.com/

It can be a good way to help coordinate landing patches (and frankly help kick me in the butt, with regards to landing pull requests).

[bcoe]

👋 @kimkwanka could I bother you for a code review on this, sounds like you were bit by the bug.

[bcoe]

@edahlseng if you could take standard-version@5.0.1 for a spin, it should have addressed the issue.

[kimkwanka]

@bcoe
Thanks a ton Benjamin, and sorry for the late reply, had a super busy week and only got around to check my messages just now.standard-version@5.0.1 works fine on my end.

[sobolevn]

This is still happening for me with standard-version@5.0.2