Introduce closeNow() for

[mcruzdev]

Description

Add a new method in WorkflowRuntime class, allowing a shutdown "now" approach.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #1631

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.91%. Comparing base (d759c53) to head (e1c4d90).
⚠️ Report is 253 commits behind head on master.

Files with missing lines	Patch %	Lines
...ava/io/dapr/workflows/runtime/WorkflowRuntime.java	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1632      +/-   ##
============================================
+ Coverage     76.91%   78.91%   +1.99%     
- Complexity     1592     2093     +501     
============================================
  Files           145      228      +83     
  Lines          4843     6312    +1469     
  Branches        562      693     +131     
============================================
+ Hits           3725     4981    +1256     
- Misses          821      979     +158     
- Partials        297      352      +55     

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