Pin dependencies

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@types/jest	devDependencies	pin	^26.0.15 -> 26.0.15
@typescript-eslint/eslint-plugin	devDependencies	pin	^4.6.1 -> 4.6.1
@typescript-eslint/parser	devDependencies	pin	^4.6.1 -> 4.6.1
eslint (source)	devDependencies	pin	^7.12.1 -> 7.12.1
eslint-config-prettier	devDependencies	pin	^6.15.0 -> 6.15.0
eslint-plugin-prettier	devDependencies	pin	^3.1.4 -> 3.1.4
prettier (source)	devDependencies	pin	^2.1.2 -> 2.1.2

:pushpin: Important: Renovate will wait until you have merged this Pin PR before creating any upgrade PRs for the affected packages. Add the preset :preserveSemverRanges to your config if you instead don't wish to pin dependencies.

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