[FrameworkBundle] make GetSetMethodNormalizer available by default

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT
| Doc PR        | not yet

The `GetSetMethodNormalizer` has not been enabled by default in #6815 because it was broken by design. Since #12098 has been merged, circular references are handle and that normalizer cannot break applications.
This PR make that normalizer automatically available when the normalizer is enabled. To avoid BC, I've set a "high" priority (higher than the default `0`).