Remove breakpoint in json-ld tests (#439)

A `breakpoint()` has been mistakenly left in the json-ld test.
In particular, the breakpoint put the update script for aas-core-meta on
hold.

In this patch, we remove the breakpoint so that the tests can run again.

tests/jsonld_context/test_main.py

@@ -64,7 +64,6 @@ def test_jsonld_context_generation(self) -> None:
                 )
                 generated_jsonld_context = (output_dir / "context.jsonld").read_text()
 
-                breakpoint()
                 self.assertEqual(generated_jsonld_context, expected_jsonld_context)