Enhance OAL engine core
* Fix `funcParamExpression` and `literalExpression` can't be used in the same aggregation function.
* Support cast statement in the OAL core engine.
* Support `(str->long)` and `(long)` for string to long cast statement.
* Support `(str->int)` and `(int)` for string to int cast statement.
* Support Long literal number in the OAL core engine.
* Support literal `string` as parameter of aggregation function.
* Add `attributeExpression` and `attributeExpressionSegment` in the OAL grammar tree to support `map` type for the
  attribute expression.

Besides added UTs, I locally tested these OAL scripts
```
mq_consume_latency = from((str->long)Service.tag["transmission.latency"]).longAvg();

mq_consume_latency = from((long)Service.tag["transmission.latency"]).longAvg();

mq_consume_latency = from((str->long)Service.tag["transmission.latency"]).filter((str->long)tag["transmission.latency"] > 0L).longAvg();
```

* Remove component definitions in Java codes. component-libraries.yml controls the ownership now.

* Remove useless codes.

* test: update commitID for client-js

* fix: remove BROWSER_APP_PAGE_REDIRECT_AVG for e2e

* fix: remove BROWSER_APP_PAGE_RES_AVG for e2e

* fix: remove unused imports
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>
Co-authored-by: Nzhang-wei <zhangwei24@apache.org>

* Revert mis-change, which makes the endpoint dependency breaking.

* Update change log.

* [maven-release-plugin] prepare release v8.8.0

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

* Create changes-8.8.0.md

* Reset changelog for 8.9.0

Co-authored-by: N姜林 <jianglin@wangxiaobao.com>

* Only report `bug warning` in precise conditions.

* Add a test check for template existing.