[Backport 1.x] Add utf-8 encoding settings in gradle settings

[peterzhuamazon]

Description

[Backport 1.x] Add utf-8 encoding settings in gradle settings

Issues Resolved

#244

Check List

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[codecov-commenter]

Codecov Report

Merging #247 (b98e04d) into 1.x (d3c79f7) will increase coverage by 0.43%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                1.x     #247      +/-   ##
============================================
+ Coverage     78.50%   78.93%   +0.43%     
- Complexity     3715     3741      +26     
============================================
  Files           275      275              
  Lines         15569    15569              
  Branches       1624     1624              
============================================
+ Hits          12223    12290      +67     
+ Misses         2631     2573      -58     
+ Partials        715      706       -9     

Flag	Coverage Δ
plugin	78.93% <ø> (+0.43%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...opensearch/ad/indices/AnomalyDetectionIndices.java	80.14% <0.00%> (-0.24%)	⬇️
...java/org/opensearch/ad/task/ADBatchTaskRunner.java	83.09% <0.00%> (+0.31%)	⬆️
...ain/java/org/opensearch/ad/task/ADTaskManager.java	77.53% <0.00%> (+0.46%)	⬆️
...rch/ad/transport/AnomalyResultTransportAction.java	80.69% <0.00%> (+0.69%)	⬆️
.../java/org/opensearch/ad/util/RestHandlerUtils.java	86.44% <0.00%> (+1.69%)	⬆️
...in/java/org/opensearch/ad/model/ADTaskProfile.java	51.69% <0.00%> (+2.96%)	⬆️
.../main/java/org/opensearch/ad/cluster/HashRing.java	84.48% <0.00%> (+3.26%)	⬆️
...rch/ad/transport/ForwardADTaskTransportAction.java	97.45% <0.00%> (+3.38%)	⬆️
...va/org/opensearch/ad/feature/SearchFeatureDao.java	81.47% <0.00%> (+4.11%)	⬆️
...c/main/java/org/opensearch/ad/util/ParseUtils.java	67.06% <0.00%> (+4.36%)	⬆️
... and 3 more