build: update angular shared dev-infra code to 6a13e27

[angular-robot]

This PR contains the following updates:

Package	Type	Update	Change
@angular/build-tooling	devDependencies	digest	88270f4 -> 6a13e27
@angular/ng-dev	devDependencies	digest	f8f29b3 -> 90af772
angular/dev-infra	action	digest	7105752 -> 49325e7

🔡 If you wish to disable git hash updates, add ":disableDigestUpdates" to the extends array in your config.

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