[Bug][Service] All tasks that need to send attachment will fail due to chennel idle

[ruanwenjun]

Fix the heartbeat packets can't send problem, close #5427

[CalvinKirs]

LGTM

[codecov-commenter]

Codecov Report

Merging #5442 (bbee0ce) into dev (d93a9dc) will increase coverage by 3.25%.
The diff coverage is 44.82%.

@@             Coverage Diff              @@
##                dev    #5442      +/-   ##
============================================
+ Coverage     45.21%   48.47%   +3.25%     
- Complexity     3395     3856     +461     
============================================
  Files           538      598      +60     
  Lines         23053    24294    +1241     
  Branches       2687     2782      +95     
============================================
+ Hits          10423    11776    +1353     
+ Misses        11698    11444     -254     
- Partials        932     1074     +142     

Impacted Files	Coverage Δ	Complexity Δ
...inscheduler/plugin/alert/email/EmailConstants.java	87.50% <ø> (ø)	1.00 <0.00> (ø)
...eduler/plugin/alert/script/ScriptAlertChannel.java	16.66% <0.00%> (ø)	1.00 <0.00> (ø)
...org/apache/dolphinscheduler/alert/AlertServer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...che/dolphinscheduler/api/ApiApplicationServer.java	33.33% <0.00%> (ø)	1.00 <0.00> (ø)
...cheduler/api/controller/AccessTokenController.java	6.66% <ø> (-1.67%)	1.00 <0.00> (-1.00)
...scheduler/api/controller/AlertGroupController.java	8.00% <ø> (+2.73%)	2.00 <0.00> (ø)
.../api/controller/AlertPluginInstanceController.java	7.69% <ø> (+1.97%)	2.00 <0.00> (ø)
...heduler/api/controller/DataAnalysisController.java	9.09% <ø> (ø)	1.00 <0.00> (-1.00)
...scheduler/api/controller/DataSourceController.java	4.16% <0.00%> (-0.49%)	1.00 <0.00> (-1.00)
...inscheduler/api/controller/ExecutorController.java	8.33% <ø> (-2.78%)	1.00 <0.00> (-1.00)
... and 298 more

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

15.4% Coverage
0.0% Duplication