fix(deps): update dependency io.camunda:zeebe-bom to v8.6.6 #1969

Job	Run time
build-async-service-task	1m 11s
build-element-template-generation	3m 18s
build-large-multi-instance-example	39s
build-parallel-operations	33s
build-payment-example-process-application	56s
build-react-tasklist	1m 4s
build-rollback-on-error-example	30s
build-start-form-springboot	33s
build-synchronous-response-springboot	43s
build-timer-testing	3m 17s
build-twitter-review-java-springboot	44s
build-zeebe-client-plain-java	16s
	13m 44s

Provide feedback