Feat: Force bump patch version, if no changes are found

[timoknapp]

Hi @christophwitzko ,

while being pretty happy with the current feature-set of your semantic-release implementation, I notice a missing feature which would be pretty helpful for our release process. Is it already possible that you can "force bump" the patch version of a release if there are no changes found in the commit history? I totally know that it then might not comply with the standards of semantic versioning, but it can sometime happen that you need to push a hotfix and therefore did not actually use a conventional commit compliant commit message. It happened already twice to us, which then forced me to perform some manual tasks again, which of course is not great either.

I furthermore found a similar feature in a more legacy-ish implementation than yours. In here the config flag is called:

--bump-patch, -p Bump patch number if no changes are found in log

Would be great if you agree to put something similar into your implementation. I would be also fine creating a PR for this.

Cheers Timo

[christophwitzko]

I am happy to add that 👍 Thanks for the PR ☺️