wpt: only tag daily runs as master (denoland#18155)

This PR updates the WPT upload script so that it only labels runs that
come from the daily WPT job as "master".

This is so that only the daily synchronized runs get selected when
viewing dashboards such as
[this](https://wpt.fyi/results/?label=master&label=experimental&product=deno&product=node.js&product=chrome&product=edge&product=firefox&product=safari&aligned&view=subtest&q=deno%3A%21missing).

.github/workflows/wpt_epoch.yml

@@ -79,4 +79,4 @@ jobs:
  WPT_FYI_USER: deno
  WPT_FYI_PW: ${{ secrets.WPT_FYI_PW }}
  run: |
- deno run -A --lock=tools/deno.lock.json ./tools/upload_wptfyi.js wptreport.json --from-raw-file
+ deno run -A --lock=tools/deno.lock.json ./tools/upload_wptfyi.js wptreport.json --from-raw-file --daily-run

tools/upload_wptfyi.js

@@ -10,9 +10,14 @@ const user = Deno.env.get("WPT_FYI_USER");
 const password = Deno.env.get("WPT_FYI_PW");
 
 const fromRawFile = Deno.args.includes("--from-raw-file");
+const dailyRun = Deno.args.includes("--daily-run");
 
 const form = new FormData();
-form.set("labels", "master,actions");
+if (dailyRun) {
+ form.set("labels", "master,actions");
+} else {
+ form.set("labels", "actions");
+}
 
 if (fromRawFile) {
  const file = Deno.args[0];