enable mvn cache to speed up workflow

[OrezzerO]

Motivation:

Explain the context, and why you're making that change. To make others understand what is the problem you're trying to solve.

Modification:

Describe the idea and modifications you've done.

Result:

Fixes #.

If there is no issue then describe the changes introduced by this PR.

[codecov[bot]]

Codecov Report

Merging #1236 (559ccdc) into master (9a0478f) will increase coverage by 0.01%. The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #1236      +/-   ##
============================================
+ Coverage     72.00%   72.01%   +0.01%     
  Complexity      779      779              
============================================
  Files           410      410              
  Lines         17375    17376       +1     
  Branches       2703     2703              
============================================
+ Hits          12510    12514       +4     
+ Misses         3482     3479       -3     
  Partials       1383     1383              

Impacted Files	Coverage Δ
...va/com/alipay/sofa/rpc/client/AbstractCluster.java	71.01% <100.00%> (+0.07%)	:arrow_up:
...a/com/alipay/sofa/rpc/common/utils/ClassUtils.java	78.23% <0.00%> (-2.05%)	:arrow_down:
...ay/sofa/rpc/client/AllConnectConnectionHolder.java	60.76% <0.00%> (+0.25%)	:arrow_up:
...lipay/sofa/rpc/config/AbstractInterfaceConfig.java	76.56% <0.00%> (+0.83%)	:arrow_up:
...n/java/com/alipay/sofa/rpc/common/SofaConfigs.java	86.79% <0.00%> (+1.88%)	:arrow_up:
...ansport/bolt/ReuseBoltClientConnectionManager.java	72.46% <0.00%> (+2.89%)	:arrow_up:

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