Bump slug from 9.1.0 to 10.0.0 #12829

Job	Run time
Install (ubuntu-latest)	56s
Install (windows-latest)	1m 31s
Build (ubuntu-latest)	12s
Lint Sass (ubuntu-latest)	21s
Lint JavaScript (ubuntu-latest)	34s
Build (windows-latest)	47s
EditorConfig (ubuntu-latest)	15s
Prettier (ubuntu-latest)	25s
TypeScript compiler (ubuntu-latest)	55s
Lint Sass (windows-latest)	1m 33s
Lint JavaScript (windows-latest)	1m 15s
EditorConfig (windows-latest)	1m 6s
Prettier (windows-latest)	1m 0s
TypeScript compiler (windows-latest)	1m 52s
Diff changes to npm package / Generate diff	1m 4s
Stats comment / Generate stats	9s
${{ matrix.task.description }} (${{ matrix.runner }})	0s
${{ matrix.task.description }} (${{ matrix.runner }})	0s
Export ${{ matrix.conditions }}, Node.js ${{ matrix.node-version }}	0s
Bundler integrations	0s
Percy	0s
	13m 55s

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