deps: update dependency com.google.cloud:google-cloud-securitycenter-bom to v2.1.6 (#3050)
deps: update dependency com.google.cloud:google-cloud-securitycenter-bom to v2.1.6 (#3050)


googleapis/java-cloud-bom,googleapis/java-cloud-bom,googleapis/java-cloud-bom,googleapis/java-cloud-bom