Does not handle interwoven releases

[timdorr]

Right now in RR, there is this tag listing:

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
...

At the moment, the action is comparing the 7.1.0 release with the 6.28.1 release. This is creating a ton of issue comments on the RR repo (such that the action is failing due to rate limits!). It will be resolved on the next 7.x release, but this will continue to be an issue if we have to create 6.x releases in the future.

I believe the fix would be to check a set of recent versions (10?) for the most recent sequential semver release in that set and make it the previous value.