Bump qdarkstyle from 3.1 to 3.2.3 in /src

Bumps [qdarkstyle](https://github.com/ColinDuquesnoy/QDarkStyleSheet) from 3.1 to 3.2.3.
- [Release notes](https://github.com/ColinDuquesnoy/QDarkStyleSheet/releases)
- [Changelog](https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/CHANGES.rst)
- [Commits](ColinDuquesnoy/QDarkStyleSheet@v3.1...v.3.2.3)

---
updated-dependencies:
- dependency-name: qdarkstyle
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/requirements.txt

@@ -1,4 +1,4 @@
 platformdirs==4.2.0
 PyQt5==5.15.10
 PyQt5_sip>=12.13
-QDarkStyle==3.1
+QDarkStyle==3.2.3