[Bug] Fixes some bugs in eventmesh.

[Alonexc]

Search before asking

• I had searched in the issues and found no similar issues.

Environment

Windows

EventMesh version

master

What happened

1. Empty pointer problem, version number modification.
2. Forensic version number is not transmitted problem .
3. httpclientPool in the httpClient did not set the timeout time problem .
4. Collection concurrency modification issues.
5. Port occupation startup failure process did not exit the problem.

How to reproduce

Follow the documentation steps to start.

1. Fix the empty pointer problem, version number modification.
2. Fix forensic version number is not transmitted .
3. Fix httpClientPool in httpClient did not set the timeout time problem.
4. Fix the collection of concurrent modifications.
5. Fix the port occupation startup failure process did not exit the problem.

Debug logs

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!