Build(deps): bump rpds-py from 0.20.1 to 0.21.0 in /pyinstaller

Bumps [rpds-py](https://github.com/crate-py/rpds) from 0.20.1 to 0.21.0.
- [Release notes](https://github.com/crate-py/rpds/releases)
- [Commits](crate-py/rpds@v0.20.1...v0.21.0)

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

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

pyinstaller/win/mingw64_venv_pip_freeze.txt

@@ -68,7 +68,7 @@ pywin32-ctypes==0.2.3
 PyYAML==6.0.2
 referencing==0.35.1
 requests==2.32.3
-rpds-py==0.20.1
+rpds-py==0.21.0
 ruamel.yaml==0.18.6
 ruamel.yaml.clib==0.2.12
 s3transfer==0.10.3