Bump puppeteer-core from 7.0.1 to 7.0.4 in /services/pdfx

Bumps [puppeteer-core](https://github.com/puppeteer/puppeteer) from 7.0.1 to 7.0.4.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/CHANGELOG.md)
- [Commits](puppeteer/puppeteer@v7.0.1...v7.0.4)

Signed-off-by: dependabot[bot] <support@github.com>

services/pdfx/package.json

@@ -10,7 +10,7 @@
   ],
   "dependencies": {
     "chrome-aws-lambda": "^7.0.0",
-    "puppeteer-core": "^7.0.1",
+    "puppeteer-core": "^7.0.4",
     "vue": "^2.6.12"
   },
   "devDependencies": {