Update dependency typescript-eslint-parser to v21

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
typescript-eslint-parser	devDependencies	major	20.1.1 -> 21.0.0	source

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Release Notes

eslint/typescript-eslint-parser

v21.0.0

Compare Source

• eb23b26 Update: add proper scope analysis (fixes #​535) (#​540) (Toru Nagashima)
• 150ffe8 Breaking: make 'useJSXTextNode:true' by default (#​544) (Toru Nagashima)
• 2d22321 Breaking: switch 'jsx' option by filename (fixes #​517) (#​543) (Toru Nagashima)
• 3b1ed17 Breaking: make eslint a peerDep/devDep (#​541) (Kai Cataldo)
• 1d54346 Chore: test Node v11 in CI (#​542) (Kai Cataldo)
• a9d932a Breaking: typescript-estree v5 (#​538) (Kai Cataldo)
• 6a9b629 Docs: add options to README (#​530) (Joe Pea)

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[coveralls]

Pull Request Test Coverage Report for Build 400

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 394:	0.0%
Covered Lines:	51
Relevant Lines:	51

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💛 - Coveralls