add vercel/remix-run-dev updater workflow (#9588)

Adds a github workflow and javascript updater script that will update
the `@remix-run/dev` version to the latest release of
`@vercel/remix-run-dev`

utils/update-remix-run-dev.js

@@ -0,0 +1,73 @@
+const { execSync } = require('child_process');
+const path = require('path');
+const fs = require('fs');
+
+module.exports = async ({ github, context }, newVersion) => {
+  execSync('git config --global user.email infra+release@vercel.com');
+  execSync('git config --global user.name vercel-release-bot');
+  execSync('git checkout main');
+
+  const packagePath = path.join(__dirname, '..', 'packages', 'remix');
+  const oldVersion = JSON.parse(
+    fs.readFileSync(path.join(packagePath, 'package.json'), 'utf-8')
+  ).dependencies['@remix-run/dev'];
+  if (newVersion === '') {
+    newVersion = execSync('npm view @vercel/remix-run-dev dist-tags.latest', {
+      encoding: 'utf-8',
+    });
+  }
+  const branch = `vercel-remix-run-dev-${newVersion.replaceAll('.', '-')}`;
+
+  if (oldVersion === newVersion) {
+    // eslint-disable-next-line no-console
+    console.log(
+      `@vercel/remix-run-dev version ${newVersion} did not change, skipping update.`
+    );
+    return;
+  }
+
+  if (
+    execSync(`git ls-remote --heads origin ${branch}`, { encoding: 'utf-8' })
+      .toString()
+      .trim()
+  ) {
+    // eslint-disable-next-line no-console
+    console.log(`Branch ${branch} already exists, skipping update.`);
+    return;
+  }
+
+  execSync(
+    `pnpm install @remix-run/dev@npm:@vercel/remix-run-dev@${newVersion} --save-exact --lockfile-only`,
+    { cwd: packagePath }
+  );
+
+  execSync(`git checkout -b ${branch}`);
+  execSync('git add -A');
+  execSync(`git commit -m ${branch}`);
+  execSync(`git push origin ${branch}`);
+
+  const { repo, owner } = context.repo;
+
+  const pr = await github.rest.pulls.create({
+    owner,
+    repo,
+    head: branch,
+    base: 'main',
+    title: `[remix] Upgrade @remix-run/dev to version ${newVersion}`,
+    body: `This auto-generated PR updates @remix-run/dev to version ${newVersion}`,
+  });
+
+  await github.rest.pulls.requestReviewers({
+    owner,
+    repo,
+    pull_number: pr.data.number,
+    reviewers: ['Ethan-Arrowood', 'TooTallNate'],
+  });
+
+  await github.rest.issues.addLabels({
+    owner,
+    repo,
+    issue_number: pr.data.number,
+    labels: ['area: remix', 'semver: patch', 'pr: automerge'],
+  });
+};