fix(deps): update camunda.version to v8.6.7 #2094

Job	Run time
build-large-multi-instance-example	41s
build-element-template-generation	4m 43s
build-async-service-task	1m 12s
build-event-processing	1m 26s
build-parallel-operations	42s
build-payment-example-process-application	5m 5s
build-react-tasklist	1m 24s
build-rollback-on-error-example	41s
build-start-form-springboot	18s
build-synchronous-response-springboot	40s
build-timer-testing	2m 42s
build-twitter-review-java-springboot	59s
build-zeebe-client-plain-java	17s
	20m 50s

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