deps(deps): bump the gui-dependencies group across 1 directory with 2…

… updates

Bumps the gui-dependencies group with 2 updates in the / directory: [pyqt5-qt5](https://www.riverbankcomputing.com/software/pyqt/) and [pyqt5-sip](https://github.com/Python-SIP/sip).


Updates `pyqt5-qt5` from 5.15.2 to 5.15.16

Updates `pyqt5-sip` from 12.15.0 to 12.16.1
- [Changelog](https://github.com/Python-SIP/sip/blob/main/docs/releases.md)
- [Commits](https://github.com/Python-SIP/sip/commits)

---
updated-dependencies:
- dependency-name: pyqt5-qt5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gui-dependencies
- dependency-name: pyqt5-sip
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gui-dependencies
...

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

requirements.txt

@@ -1,7 +1,7 @@
 # Core application dependencies
 PyQt5==5.15.11
-PyQt5-Qt5==5.15.2
-PyQt5_sip==12.15.0
+PyQt5-Qt5==5.15.16
+PyQt5_sip==12.16.1
 psutil==6.0.0
 tqdm==4.66.5