Automatically increment version in galaxy.yml

[artis3n]

This action should supply 2 input parameters:

galaxy_version_increment and galaxy_version_commit

that read in the current value in galaxy.yml, increment it in major/minor/patch and commit the changed file to the branch that triggered the action run.

[artis3n]

This will remove the need to manually bump versions in the test cases inside this repo, which would be awesome.

[ahuffman]

@artis3n you can probably do this easily with yot instead of templating.

[artis3n]

That is a neat tool! I need to set aside some time to do this.

I've been thinking of this feature as primarily beneficial to make CI testing in this repo easier for me. I'd be interested to hear about scenarios in which this might be useful to consumers of the Action as well.