Deploy build_runner action on repos using github actions

[cbeauchesne]

• CI: Simplify System Tests dd-trace-go#2079
• https://github.com/DataDog/dd-trace-java -> nope, circle CI
• Optimize system-tests CI dd-trace-js#3605
• https://github.com/DataDog/dd-trace-php -> nope, circle CI
• https://github.com/DataDog/dd-trace-py -> chore(ci): optimize system-tests dd-trace-py#10350
• https://github.com/DataDog/dd-trace-rb -> nope, they are using a custom docker runner
• https://github.com/DataDog/dd-trace-dotnet -> nope, azure CI
• AppSec rules
• PHP extension -> nope, has been merge in dd-trace-php