build: update angular shared dev-infra code to a96fc0c

[angular-robot]

This PR contains the following updates:

Package	Type	Update	Change
@angular/build-tooling	devDependencies	digest	6f2cb5c -> a96fc0c
@angular/ng-dev	devDependencies	digest	170605f -> 73935dd
angular/dev-infra	action	digest	bf4bb09 -> db59d49

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

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