* [maven-release-plugin] prepare release v8.4.0

* [maven-release-plugin] prepare for next development iteration

Fix bug that the same sample name in one MAL expression caused `IllegalArgumentException` in `Analyzer.analyse`. (#6250)

* Filter expression based on input samples
Signed-off-by: NGao Hongtao <hanahmily@gmail.com>

* Fix MAL concurrent issues
Signed-off-by: NGao Hongtao <hanahmily@gmail.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* [maven-release-plugin] prepare release v8.3.0

* [maven-release-plugin] prepare for next development iteration

* Add Istio control plane otel MAL expressions and UI template
* Remove OpenCensus receiver, add OpenTelemetry receiver
* Transfer oc receiver to ot receiver
* Create indices on boot
* Document istio metrics and otel receiver
* Update CHANGES.md
* Fix potential NPE
* Add group to meter and cleanup istio mixer
* Update e2e case due to the change of meter metric name
* Update prometheus fetcher config, fix sql builder issue of h2
* Disable istio and so11y metrics by default.
* Fix micrometer testcase

* Polish the context and optimize the tag analyze

* Fix bug of new context codes.

* add oal excludes and includes to support tags
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* [maven-release-plugin] prepare release v8.2.0

* [maven-release-plugin] prepare for next development iteration

* Add SW_NO_UPSTREAM_REAL_ADDRESS config doc

* Fix legal config issue.

* Update docs/en/setup/backend/configuration-vocabulary.md

* Add a test case to verify the module config initializer, which only supports 4 simple types.
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>

* Upgrade dependencies and make the JDK11 compiling passed.

* Update license and fix license check file.

* Add CI for JDK11 compiling.

* Update doc.

* fix bug #5417, make the CPU usage percent always >= 1

* Save some error trace segment, event this segment abandoned by server side trace sampling mechanism.
* Support forceSaveErrorSegment config to control force save some error segment.
Co-authored-by: Necho <zifeihan@foxmail.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

Co-authored-by: Njingjiu <jingjiu@tsign.cn>

* [maven-release-plugin] prepare release v8.1.0

* [maven-release-plugin] prepare for next development iteration