Bump json from 20200518 to 20220924 in /src/backend

[dependabot[bot]]

Bumps json from 20200518 to 20220924.

Release notes

Sourced from json's releases.

20220924

Pull Request	Description
#688	Update copyright to Public Domain
#687	Fix a typo
#685	JSONObject map type unit tests
#684	Remove v7 build from pipeline
#682	JSONString similarity
#675	stleary/JSON-java#675

20220320

Pull Request	Description
#660	Wrap StackOverflow with JSONException

20211205

Pull Request	Description
#651	IdentityHashSet for JSONObject cycle detection
#646	XMLParserConfiguration defined json arrays option
#645	Handle circular references in Java beans
#640	Unit tests for multiple backslashes in JSONPointer
#637	Reorganized README.md
#634	Update README with Unix examples
#631	Refactor JSONPointerTest
#626	Add CODE_OF_CONDUCT.md
#622	Clean up readme.md
#621	Clean up comments
#617	JSONObject.similar() numeric compare bug fix
#613	JsonObject.similar() number entry check bug fix
#610	optJSONObject() add default value
#607	Add Security.md policy page
#606	Clean up comments, add suppressWarning annotation
#604	Fixed incorrect cast getting float from array
#601	Added Examples.md for new users
#594	JSONStringer.java: fix max nesting level in javadoc

20210307

Pull Request	Description
#575	Fix similar compare numbers
#577	Added clear() methods to JSONObject and JSONArray
#581	Use built-in Gradle shorthand notation for Maven Central repository
#583	Checked the length of key for checker framework
#588	JSONPointer should not process reverse solidus or double-quote chars in tokens

NOTE:

... (truncated)

Changelog

Sourced from json's changelog.

20220924 New License - public domain, and some minor updates

20220320 Wrap StackOverflow with JSONException

20211205 Recent commits and some bug fixes for similar()

20210307 Recent commits and potentially breaking fix to JSONPointer

20201115 Recent commits and first release after project structure change

Commits

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