build(deps): bump pypdf2 from 1.26.0 to 1.27.5 in /docker/v3.6

Bumps [pypdf2](https://github.com/py-pdf/PyPDF2) from 1.26.0 to 1.27.5.
- [Release notes](https://github.com/py-pdf/PyPDF2/releases)
- [Changelog](https://github.com/py-pdf/PyPDF2/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@1.26.0...1.27.5)

---
updated-dependencies:
- dependency-name: pypdf2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docker/v3.6/requirements.txt

@@ -81,7 +81,7 @@ pygments==2.2.0           # via ipython
 pyjwkest==1.4.0           # via social-auth-core
 pyjwt==1.5.2              # via social-auth-core
 pylint==1.9.2
-pypdf2==1.26.0            # via xhtml2pdf
+pypdf2==1.27.5            # via xhtml2pdf
 pyprof2calltree==1.4.3
 python-dateutil==2.6.1    # via alembic
 python-editor==1.0.3      # via alembic