feature: raft implements domain name resolution and selects peerId

[PeppaO]

• I have registered the PR changes.

Ⅰ. Describe what this PR did

raft不设置SEATA_IP，raft实现域名解析并选择peerId

Ⅱ. Does this pull request fix one issue?

#7082

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[funky-eyes]

I think this PR is not a bugfix PR because, according to the changes you listed, the first point is a feature and the second point is an optimization.

[codecov]

Codecov Report

Attention: Patch coverage is 23.80952% with 16 lines in your changes missing coverage. Please review.

Project coverage is 52.06%. Comparing base (679a2e0) to head (11aa15f).
Report is 3 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...ain/java/org/apache/seata/common/util/NetUtil.java	0.00%	14 Missing ⚠️
...e/seata/server/cluster/raft/RaftServerManager.java	71.42%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #7181      +/-   ##
============================================
- Coverage     52.20%   52.06%   -0.15%     
- Complexity     6817     6855      +38     
============================================
  Files          1154     1169      +15     
  Lines         41116    41461     +345     
  Branches       4820     4850      +30     
============================================
+ Hits          21464    21585     +121     
- Misses        17611    17822     +211     
- Partials       2041     2054      +13     

Files with missing lines	Coverage Δ
...e/seata/server/cluster/raft/RaftServerManager.java	80.00% <71.42%> (-4.16%)	⬇️
...ain/java/org/apache/seata/common/util/NetUtil.java	47.97% <0.00%> (-5.02%)	⬇️

... and 11 files with indirect coverage changes

[funky-eyes]

LGTM