Bump pdfmake from 0.2.8 to 0.2.9 in /tcms

Bumps [pdfmake](https://github.com/bpampuch/pdfmake) from 0.2.8 to 0.2.9.
- [Release notes](https://github.com/bpampuch/pdfmake/releases)
- [Changelog](https://github.com/bpampuch/pdfmake/blob/0.2.9/CHANGELOG.md)
- [Commits](bpampuch/pdfmake@0.2.8...0.2.9)

---
updated-dependencies:
- dependency-name: pdfmake
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

tcms/package.json

@@ -6,7 +6,7 @@
     "html5sortable": "0.13.3",
     "jszip": "3.10.1",
     "patternfly": "3.59.5",
-    "pdfmake": "0.2.8",
+    "pdfmake": "0.2.9",
     "simplemde": "1.11.2",
     "typeahead.js": "0.11.1"
   },