For validation, the "on" key in existing YAML files is changed to a literal
string. In the YAML spec, on is a keyword which encodes a boolean value, so
without relying on a specific implementation the YAML files are technically
not encoding an object that complies with the specification.
PiperOrigin-RevId: 350172147
Also, drop the pull_request template, since this has not proved to be
helpful, and just results in a commit message the includes the list.
PiperOrigin-RevId: 347636507
This is the first automated GitHub actions workflow, and it simply applies
labels to pull request in a best-effort fashion.
PiperOrigin-RevId: 308112191
Adin Scannell