[stubsabot] Bump pyinstaller to 5.9.* (#9880)

Release: https://pypi.org/pypi/pyinstaller/5.9.0
Homepage: https://www.pyinstaller.org/
Diff: pyinstaller/pyinstaller@v5.8.0...v5.9.0

Stubsabot analysis of the diff between the two releases:
 - 0 public Python files have been added.
 - 0 files included in typeshed's stubs have been deleted.
 - 3 files included in typeshed's stubs have been modified or renamed: `PyInstaller/__init__.py`, `PyInstaller/building/build_main.py`, `PyInstaller/isolated/_parent.py`.
 - Total lines of Python code added: 28.
 - Total lines of Python code deleted: 59.

Author: github-actions[bot]

stubs/pyinstaller/METADATA.toml

@@ -1,2 +1,2 @@
-version = "5.8.*"
+version = "5.9.*"
 requires = ["types-setuptools"]