Bump pyinstaller from 4.3 to 6.3.0

Bumps [pyinstaller](https://github.com/pyinstaller/pyinstaller) from 4.3 to 6.3.0.
- [Release notes](https://github.com/pyinstaller/pyinstaller/releases)
- [Changelog](https://github.com/pyinstaller/pyinstaller/blob/develop/doc/CHANGES.rst)
- [Commits](pyinstaller/pyinstaller@v4.3...v6.3.0)

---
updated-dependencies:
- dependency-name: pyinstaller
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -10,16 +10,18 @@ brotli==1.0.9
     # via fonttools
 fonttools[woff]==4.23.0
     # via -r requirements.in
-pyinstaller-hooks-contrib==2021.1
+packaging==23.2
     # via pyinstaller
-pyinstaller==4.3
+pyinstaller==6.3.0
+    # via -r requirements.in
+pyinstaller-hooks-contrib==2023.10
+    # via pyinstaller
+pyqt5==5.15.3
     # via -r requirements.in
 pyqt5-qt==5.15.2
     # via pyqt5
 pyqt5-sip==12.8.1
     # via pyqt5
-pyqt5==5.15.3
-    # via -r requirements.in
 zopfli==0.1.8
     # via fonttools