pip: bump sphinxcontrib-qthelp from 1.0.3 to 1.0.6

Bumps [sphinxcontrib-qthelp](https://github.com/sphinx-doc/sphinxcontrib-qthelp) from 1.0.3 to 1.0.6.
- [Release notes](https://github.com/sphinx-doc/sphinxcontrib-qthelp/releases)
- [Changelog](https://github.com/sphinx-doc/sphinxcontrib-qthelp/blob/1.0.6/CHANGES)
- [Commits](sphinx-doc/sphinxcontrib-qthelp@1.0.3...1.0.6)

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

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

requirements.txt

@@ -24,7 +24,7 @@ sphinxcontrib-applehelp==1.0.4
 sphinxcontrib-devhelp==1.0.4
 sphinxcontrib-htmlhelp==2.0.3
 sphinxcontrib-jsmath==1.0.1
-sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-qthelp==1.0.6
 sphinxcontrib-serializinghtml==1.1.7
 tqdm==4.66.1
 translate-toolkit==3.10.0