bugfix: fix the incomplete dependency of distribution module

[HEIBAIJIE]

• I have registered the PR changes.

Ⅰ. Describe what this PR did

Add apm-seata-skywalking-plugin to the dependency of distribution module，so it can be built before distribution.
The reason is, we have to build ext/apm-skywalking before we move this folder to distribution folder.

Ⅱ. Does this pull request fix one issue?

fix #5245

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

There is no code change.

Ⅳ. Describe how to verify it

mvn -Prelease-seata -Dmaven.test.skip=true clean install -U
We can see apm-seata-skywalking-plugin build before seata-distribution.
And we can see /ext folder under distribution/target/seata-server-1.6.1/seata

Ⅴ. Special notes for reviews

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Merging #5261 (31b8468) into develop (6a7e1bb) will increase coverage by 0.04%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #5261      +/-   ##
=============================================
+ Coverage      48.85%   48.89%   +0.04%     
- Complexity      4164     4168       +4     
=============================================
  Files            743      743              
  Lines          26538    26538              
  Branches        3301     3301              
=============================================
+ Hits           12964    12977      +13     
+ Misses         12165    12153      -12     
+ Partials        1409     1408       -1     

Impacted Files	Coverage Δ
...er/src/main/java/io/seata/server/ServerRunner.java	50.00% <0.00%> (-15.39%)	⬇️
...n/src/main/java/io/seata/common/util/IdWorker.java	77.08% <0.00%> (-6.25%)	⬇️
...in/java/io/seata/server/session/BranchSession.java	79.28% <0.00%> (+0.71%)	⬆️
...in/java/io/seata/server/session/GlobalSession.java	80.15% <0.00%> (+1.14%)	⬆️
...torage/file/store/FileTransactionStoreManager.java	60.45% <0.00%> (+1.28%)	⬆️
...o/seata/server/session/AbstractSessionManager.java	64.17% <0.00%> (+2.98%)	⬆️
.../java/io/seata/server/coordinator/DefaultCore.java	54.11% <0.00%> (+5.88%)	⬆️

[slievrly]

LGTM