[PR #7322/93330ecb backport][3.85] Management command for data repairs

[patchback]

This is a backport of PR #7322 as merged into main (93330ec).

Create a single reusable data repair management command for data repair operations happening outside of migrations.

Specifically in this case the motivation is to resolve the repository version memoization issues, but it can be reused in the future.

re #7272

Usage (ignore the warnings):

[root@cb0f1f0e9d34 src]# pulpcore-manager datarepair 7272 --dry-run
/usr/local/lib/python3.11/site-packages/django/db/backends/utils.py:98: RuntimeWarning: Accessing the database during app initialization is discouraged. To fix this warning, avoid executing queries in AppConfig.ready() or when your app modules are imported.
  warnings.warn(self.APPS_NOT_READY_WARNING_MSG, category=RuntimeWarning)

In domain "default"
	Repository "test" (type "rpm.rpm") version 2 has a mismatch between the RepositoryContent and the cached ID set
	Repository "test" (type "rpm.rpm") version 2 has a mismatch between the RepositoryContent and RepositoryVersionContentDetails

Finished. (no changes)
[root@cb0f1f0e9d34 src]# pulpcore-manager datarepair 7272
/usr/local/lib/python3.11/site-packages/django/db/backends/utils.py:98: RuntimeWarning: Accessing the database during app initialization is discouraged. To fix this warning, avoid executing queries in AppConfig.ready() or when your app modules are imported.
  warnings.warn(self.APPS_NOT_READY_WARNING_MSG, category=RuntimeWarning)

In domain "default"
	Repository "test" (type "rpm.rpm") version 2 has a mismatch between the RepositoryContent and the cached ID set
	Repository "test" (type "rpm.rpm") version 2 has a mismatch between the RepositoryContent and RepositoryVersionContentDetails

Finished. (1 repository versions fixed)
[root@cb0f1f0e9d34 src]# pulpcore-manager datarepair 7272 --dry-run
/usr/local/lib/python3.11/site-packages/django/db/backends/utils.py:98: RuntimeWarning: Accessing the database during app initialization is discouraged. To fix this warning, avoid executing queries in AppConfig.ready() or when your app modules are imported.
  warnings.warn(self.APPS_NOT_READY_WARNING_MSG, category=RuntimeWarning)


Finished. (OK)
[root@cb0f1f0e9d34 src]#