Update dependency com.alibaba.csp:sentinel-datasource-zookeeper to v1.8.7

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
com.alibaba.csp:sentinel-datasource-zookeeper	compile	patch	1.8.6 → 1.8.7

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	Vulnerability
Critical	9.1	CVE-2019-20444

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Release Notes

alibaba/Sentinel (com.alibaba.csp:sentinel-datasource-zookeeper)

v1.8.7

Compare Source

Features / Enhancements

• Add default circuit breaker rule support (#​2232)
• Update metrics name for better monitor selection in JMX MetricBeanWriter extension (#​2976)
• Refine throttling control behavior of FlowRule: improve accuracy and support maxQps > 1000 (#​2951)
• Add SSL support for sentinel-datasource-redis (#​3045)
• Add basic implementation of token bucket for flow-control (#​3106)
• Remove the requirement of carrying batchCount and args in entry.exit() (#​3114)
• Make default JUL-based logging asynchronous (#​3136)
• Make all ThreadPool static final (#​3243)
• Add Prometheus exporter module for Sentinel metrics (#​3173)
• Resource rules (flow/degrade/param/authority) support regex matching (#​3251)

Bug Fixes

• Fix NPE bug in LogSlot#entry when recording rule ID (#​2980)
• Fix the bug that error occurs in JMX metrics exporter when resource name contains '*' (#​2992)
• Fix thread-blocked problem of EtcdDataSource (#​2991)
• Fix potential connection leak bug when closing NacosDataSource (#​2962)
• Fix order dependent tests in SofaRpcFallbackRegistryTest (#​3282)

Dashboard

• Add simple Dockerfile for Sentinel dashboard (#​2970)

Dependencies

• Update snakeyaml to 1.32 in sentinel-cluster/sentinel-cluster-server-envoy-rls module (#​2921)
• Update dubbo to 2.7.18 in sentinel-demo/sentinel-demo-apache-dubbo (#​2923)
• Update protobuf & gRPC version of adapter modules to fix macOS aarch64 compile error (#​2993)
• Upgrade curator-recipes to 5.1.0 to fix API change for ZooKeeper data-source (#​2963)

Thanks for all contributors: @​sczyh30, @​wuwen5, @​xiaozzzi, @​EzrealOf, @​wilsonwu, @​kirklin, @​garroshh, @​JosephZhang3, @​LiYangSir, @​Yan1025, @​wenshao, @​pandaapo, @​frank-zsy, @​z521598, @​LearningGp, @​robberphex, @​clara0, @​karl-sy, @​SaaiVenkat

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