Bump python-ldap from 3.2.0 to 3.4.0

Bumps [python-ldap](https://github.com/python-ldap/python-ldap) from 3.2.0 to 3.4.0.
- [Release notes](https://github.com/python-ldap/python-ldap/releases)
- [Commits](python-ldap/python-ldap@python-ldap-3.2.0...python-ldap-3.4.0)

---
updated-dependencies:
- dependency-name: python-ldap
  dependency-type: direct:production
...

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

Author: dependabot[bot]

dev_requirements.txt

@@ -1,6 +1,6 @@
 black==22.1.0
 pre-commit==2.17.0
-python-ldap==3.2.0  # here instead of requirements.txt so rtfd can build
+python-ldap==3.4.0  # here instead of requirements.txt so rtfd can build
 Sphinx==2.1.2
 
 -r requirements.txt