[fix] Add token as authentication for python gateway

[zhongjiajie]

separate from #6407. Authentication, add secret to ensure only trusted people could connect to gateway.

fix: #8255

[codecov-commenter]

Codecov Report

Merging #12893 (eced157) into dev (d324cce) will increase coverage by 0.02%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                dev   #12893      +/-   ##
============================================
+ Coverage     39.41%   39.43%   +0.02%     
+ Complexity     4245     4242       -3     
============================================
  Files          1053     1052       -1     
  Lines         39880    39860      -20     
  Branches       4585     4586       +1     
============================================
+ Hits          15718    15719       +1     
+ Misses        22384    22365      -19     
+ Partials       1778     1776       -2     

Impacted Files	Coverage Δ
...che/dolphinscheduler/api/python/PythonGateway.java	17.93% <0.00%> (-0.17%)	⬇️
...org/apache/dolphinscheduler/remote/utils/Host.java	42.55% <0.00%> (-2.13%)	⬇️
...e/dolphinscheduler/remote/NettyRemotingClient.java	51.38% <0.00%> (-1.39%)	⬇️
.../api/configuration/PythonGatewayConfiguration.java
...erver/master/processor/queue/TaskEventService.java	80.35% <0.00%> (+10.71%)	⬆️

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[sonarcloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

14.3% Coverage
0.0% Duplication