build(deps): bump reportlab from 3.5.6 to 3.5.55 in /requirements (#9686

)

Bumps [reportlab](http://www.reportlab.com/) from 3.5.6 to 3.5.55.

---
updated-dependencies:
- dependency-name: reportlab
  dependency-type: direct:production
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/base.txt

@@ -15,7 +15,7 @@ gitterpy
 gunicorn
 matplotlib
 Markdown==3.2.1
-reportlab==3.5.6
+reportlab==3.5.55
 requests
 requests_oauthlib
 Pillow==8.3.2