update CodeQL to v3 by Simulant87 · Pull Request #991 · stleary/JSON-java

What problem does this code solve?
CodeQL version 2 is deprecated, upgrade to version 3

Does the code still compile with Java6?
This is not a code change

Risks
Low

Changes to the API?
N/A

Will this require a new release?
No

Should the documentation be updated?
No

Does it break the unit tests?
N/A

Was any code refactored in this commit?
N/A

Review status
APPROVED

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