[FIX][Standalone Server] check if maven settings.xml not exists

[LiuBodong]

Purpose of the pull request

resolves #6689

[codecov-commenter]

Codecov Report

Merging #6691 (3359dfc) into dev (61a8726) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                dev    #6691      +/-   ##
============================================
- Coverage     38.41%   38.39%   -0.03%     
+ Complexity     3227     3223       -4     
============================================
  Files           646      646              
  Lines         25936    25936              
  Branches       2817     2817              
============================================
- Hits           9964     9957       -7     
- Misses        15058    15065       +7     
  Partials        914      914              

Impacted Files	Coverage Δ
...heduler/spi/plugin/DolphinPluginManagerConfig.java	0.00% <0.00%> (ø)
...ache/dolphinscheduler/server/log/LoggerServer.java	78.26% <0.00%> (-8.70%)	⬇️
...er/master/dispatch/host/assign/RandomSelector.java	77.77% <0.00%> (-5.56%)	⬇️
...org/apache/dolphinscheduler/remote/utils/Host.java	37.77% <0.00%> (-2.23%)	⬇️
...dolphinscheduler/remote/future/ResponseFuture.java	81.35% <0.00%> (-1.70%)	⬇️
...e/dolphinscheduler/remote/NettyRemotingClient.java	52.11% <0.00%> (-1.41%)	⬇️

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

[CalvinKirs]

LGTM

[lenboo]

+1