[Refactoring] Replace deprecated usage of `new JsonParser`

[f-schnabel]

Purpose

It is recommended to use the static methods of JsonParser. See: https://github.com/google/gson/blob/99cc4cb11f73a6d672aa6381013d651b7921e00f/gson/src/main/java/com/google/gson/JsonParser.java#L74-L78

Approach

Describe how you are implementing the solutions along with the design details.

Samples

Provide high-level details about the samples related to this feature.

Remarks

List any other known issues, related PRs, TODO items, or any other notes related to the PR.

Check List

• [x] Read the Contributing Guide
• [ ] Updated Change Log
• [ ] Checked Tooling Support (#<Issue Number>)
• [ ] Added necessary tests
  • [ ] Unit Tests
  • [ ] Spec Conformance Tests
  • [ ] Integration Tests
  • [ ] Ballerina By Example Tests
• [ ] Increased Test Coverage
• [ ] Added necessary documentation
  • [ ] API documentation
  • [ ] Module documentation in Module.md files
  • [ ] Ballerina By Examples

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.35%. Comparing base (1bd071a) to head (a3f0809). Report is 379 commits behind head on master.

Files with missing lines	Patch %	Lines
...ain/java/io/ballerina/projects/util/FileUtils.java	0.00%	1 Missing :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #42945      +/-   ##
============================================
- Coverage     77.35%   77.35%   -0.01%     
- Complexity    58262    58295      +33     
============================================
  Files          3450     3453       +3     
  Lines        218975   219027      +52     
  Branches      28745    28758      +13     
============================================
+ Hits         169395   169428      +33     
- Misses        40252    40266      +14     
- Partials       9328     9333       +5     

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[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.

[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.

[f-schnabel]

Remove state status

[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.

[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.