Update body when PR exists

[maleadt]

Thanks for developing this action, works great!

I was wondering if it would be possible to update the PR body when the branch exists already. To simplify review, I add some details about the commit to the PR's body, but when it gets updated with a different commit that information is out-of-sync.

[peter-evans]

@maleadt, glad to hear it works well for you.

Thanks for pointing this out. Currently, most of the fields of the PR will be updated, it's just the title and body that won't be. I will work on adding this missing feature.

[peter-evans]

Released and updated v2 with this feature. Thanks for reporting!