[Translation:update][Xliff Dumper] added target-language.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11218
| License       | MIT
Hi @ClementGautier, I already fixed this issue :)