feat: Generated value file is last arg (#13)

It simply places the --values=./values.yml argument at the very last place in
the whole command. This ensures that these values take precedence over other
value arguments.

index.js

@@ -191,12 +191,12 @@ async function run() {
  "--wait",
  "--atomic",
  `--namespace=${namespace}`,
- "--values=./values.yml",
  ];
  if (dryRun) args.push("--dry-run");
  if (appName) args.push(`--set=app.name=${appName}`);
  if (version) args.push(`--set=app.version=${version}`);
  valueFiles.forEach(f => args.push(`--values=${f}`));
+ args.push("--values=./values.yml");
 
  // Special behaviour is triggered if the track is labelled 'canary'. The
  // service and ingress resources are disabled. Access to the canary