Pretty Package Versions

This last small patch handles the same edge case as the previous one, for replaced packages. I also added a CI job to test against PHP 8.1, which is coming in less than 2 months!

This last small patch had to be rushed out due to a deprecation in Composer 2.0.14. This was triggering failures downstream, like in the Sentry SDK CI.

This last small patch publishes a new constant to make the “no reference” text available to end users.

This small patch adds a small FC (forward compatibility) layer to the 1.x series, by adding the new methods introduced in the 2.0 release. This should ease the support for both major versions at the same time.

This small patch handles a couple of new bugs that got discovered through an issue on `sentry-symfony.