[FrameworkBundle] update debug commands references

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12939
| License       | MIT
| Doc PR        | 

With #11627, both the `ContainerDebugCommand` name and the
`ConfigDebugCommand` name have been moved to the `debug` namespace.
Thus, references should be updated accordingly.