fix: Malformed JSON in `whereMatchesQuery`

[juriSacchetta]

Pull Request

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• Any contribution is under this license.
• Link this pull request to an issue.

Issue

Re-open PR: #943 Closes: #939

Approach

Fix bug in JSON creation when whereMatchesQuery is used.

Tasks

• [x] Add tests
• [ ] Add changes to documentation (guides, repository pages, code comments)

[parse-github-assistant[bot]]

Thanks for opening this pull request!

[parse-github-assistant[bot]]

I will reformat the title to use the proper commit message syntax.

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01 :tada:

Comparison is base (c9d64cb) 39.31% compared to head (6f31021) 39.33%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #955 +/- ## ========================================== + Coverage 39.31% 39.33% +0.01% ========================================== Files 60 60 Lines 3355 3356 +1 ========================================== + Hits 1319 1320 +1 Misses 2036 2036 ``` | [Impacted Files](https://app.codecov.io/gh/parse-community/Parse-SDK-Flutter/pull/955?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community) | Coverage Δ | | |---|---|---| | [packages/dart/lib/src/network/parse\_query.dart](https://app.codecov.io/gh/parse-community/Parse-SDK-Flutter/pull/955?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community#diff-cGFja2FnZXMvZGFydC9saWIvc3JjL25ldHdvcmsvcGFyc2VfcXVlcnkuZGFydA==) | `45.28% <100.00%> (+0.20%)` | :arrow_up: |

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[juriSacchetta]

Could you add a changelog entry?

I don't know how to do it, can you give me some indication?

[mbfakourii]

Could you add a changelog entry?

I don't know how to do it, can you give me some indication?

An example is in this PR.

It means is adding changes and bump version (increasing the package version).

[juriSacchetta]

Could you add a changelog entry?

I don't know how to do it, can you give me some indication?

An example is in this PR.

It means is adding changes and bump version (increasing the package version).

Thank you for your reply. Please let me know if it's alright now.

[mbfakourii]

Could you add a changelog entry?

I don't know how to do it, can you give me some indication?

An example is in this PR. It means is adding changes and bump version (increasing the package version).

Thank you for your reply. Please let me know if it's alright now.

Looks good