Implement parsing time based on pattern for @ApolloJsonValue

[huxleyliau]

What's the purpose of this PR

Implement parsing time based on pattern for @ApolloJsonValue from #49

Which issue(s) this PR fixes:

Fixes #49

Brief changelog

Make use of Gson's current way of turning a string into a date to make @ApolloJsonValue able to handle time strings according to a given pattern.

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• Update the CHANGES log.

[github-actions]

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[huxleyliau]

I have read the CLA Document and I hereby sign the CLA

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (ce881f5) 68.59% compared to head (a6aac60) 68.60%.
Report is 1 commits behind head on main.

❗ Current head a6aac60 differs from pull request most recent head 4532209. Consider uploading reports for the commit 4532209 to get more accurate results

Files	Patch %	Lines
...pring/property/AutoUpdateConfigChangeListener.java	83.33%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #52      +/-   ##
============================================
+ Coverage     68.59%   68.60%   +0.01%     
  Complexity     1206     1206              
============================================
  Files           171      171              
  Lines          5196     5202       +6     
  Branches        561      562       +1     
============================================
+ Hits           3564     3569       +5     
  Misses         1371     1371              
- Partials        261      262       +1     

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[nobodyiam]

recheck