Provide cache tags which are invalidated when a state variable changes.

I have a use case for this: the state_token module → adds tokens that are replaced with a state value and there is currently no easy way to refresh the token if the state value changes.

Update for drupal 10.1.x

Patch for D11.

I could use this, as well. We use state in several ways, and some of our render arrays depend on these state variables.

However, the patch in #11 (with Drupal 10.2) throws this error when rebuilding the cache:

> Constructing service "cache_tags.invalidator" from a parent definition is not supported at build time.

However, the patch in #11 (with Drupal 10.2) throws this error when rebuilding the cache:

The patch will probably not work without 📌 Convert CacheTagsInvalidator to use a service collector Fixed (committed in 10.3).