Switch to dequal to remove 45 transitive dependencies

[benmccann]

deep-equal has 45 transitive dependencies whereas dequal has none. This is important for Svelte which loads axobject-query in the browser as part of https://svelte.dev/repl

See also A11yance/aria-query#497

[coveralls]

Pull Request Test Coverage Report for Build 5064449859

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.143%

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Totals
Change from base Build 3616027124:	0.0%
Covered Lines:	223
Relevant Lines:	224

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💛 - Coveralls