build(deps): bump pyinstaller from 6.14.2 to 6.15.0

Bumps [pyinstaller](https://github.com/pyinstaller/pyinstaller) from 6.14.2 to 6.15.0.
- [Release notes](https://github.com/pyinstaller/pyinstaller/releases)
- [Changelog](https://github.com/pyinstaller/pyinstaller/blob/develop/doc/CHANGES.rst)
- [Commits](pyinstaller/pyinstaller@v6.14.2...v6.15.0)

---
updated-dependencies:
- dependency-name: pyinstaller
  dependency-version: 6.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -86,7 +86,7 @@ win_dist = [
     "wheel==0.45.1",
     "pip==25.1.1",
     "pywin32==311",
-    "pyinstaller==6.14.2",
+    "pyinstaller==6.15.0",
     "packaging==25.0",
 ]