build(deps-dev): bump @openapitools/openapi-generator-cli from 2.13.9 to 2.15.0 #494

Job	Run time
pr / dependency-review / dependency review	9s
pr / angular / npm build and test	1m 58s
pr / code-ql / codeql qa	1m 19s
pr / docker / docker build and push	15s
pr / helm / helm build and push	6s
	3m 47s

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