Run incorrrectly marked as successful if git push fails

[emab]

When the push is attempted, a successful push is detected by looking for references of the word remote. This doesn't work as the word also appears when the push fails, for example:

Expected behaviour is that the run is marked as failed if any push fails.

[emab]

heroku-git-push/src/git.ts

Lines 38 to 42 in 8ceb83d

	const processKillTriggerWords = [
	"building source",
	"remote",
	"compressing source files",
	];

Fix should be relatively straightforward if these kill trigger words are updated. Perhaps some trigger words that trigger a failure would be useful, such as rejected. That way any failures will be picked up before assuming it's a successful push.

For reference, when pushing to Heroku, the output includes remote: after the push has been successful which is why it was used originally.