Correct use of Ajv
Without this patch, calling PUT on code/{source_language}/comments/{project_id}
fails with
\"Internal Server Error:│chalendar@ow2-decoder:~/semparsing/semparsing_tool$ ./test_semantic_parsing_pkm.sh
\\\"In Schema File '/pkm-api/schemas/pkm-metamodels/pkm-c-comments-schema-1.0.0.json':Ajv is not a│ % Total % Received % Xferd Average Speed Time Time Time Current
constructor\\\"\"