chore: bump pyinstaller from 4.3 to 4.5.1

[dependabot]

Bumps pyinstaller from 4.3 to 4.5.1.

Release notes

Sourced from pyinstaller's releases.

Release 4.5.1

Please see the v4.5.1 section of the changelog for a list of the bufixes since v4.5.

v4.5

Please see the v4.5 section of the changelog for the new features and bufixes since v4.4.

v4.4

See the the v4.4 section of the changelog for the new features and bugfixes since v4.3.

Changelog

Sourced from pyinstaller's changelog.

4.5.1 (2021-08-06)

Bugfix

* Fix hook loader function not finding hooks if path has whitespaces.
  (:issue:`[#6080](https://github.com/pyinstaller/pyinstaller/issues/6080)`)
4.5 (2021-08-01)
Features

• (POSIX) Add exclude_system_libraries function to the Analysis class for .spec files, to exclude most or all non-Python system libraries from the bundle. Documented in new :ref:POSIX Specific Options section. (:issue:[#6022](https://github.com/pyinstaller/pyinstaller/issues/6022))

Bugfix

* (Cygwin) Add ``_MEIPASS`` to DLL search path to fix loading of python shared
  library in onefile builds made in cygwin environment and executed outside of
  it. (:issue:`[#6000](https://github.com/pyinstaller/pyinstaller/issues/6000)`)
* (Linux) Display missing library warnings for "not found" lines in ``ldd``
  output (i.e., ``libsomething.so => not found``) instead of quietly
  ignoring them. (:issue:`[#6015](https://github.com/pyinstaller/pyinstaller/issues/6015)`)
* (Linux) Fix spurious missing library warning when ``libc.so`` points to
  ``ldd``. (:issue:`[#6015](https://github.com/pyinstaller/pyinstaller/issues/6015)`)
* (macOS) Fix python shared library detection for non-framework python builds
  when the library  path cannot be inferred from imports of the ``python``
  executable. (:issue:`[#6021](https://github.com/pyinstaller/pyinstaller/issues/6021)`)
* (macOS) Fix the crashes in ``onedir`` bundles of ``tkinter``-based
  applications
  created using Homebrew python 3.9 and Tcl/Tk 8.6.11. (:issue:`[#6043](https://github.com/pyinstaller/pyinstaller/issues/6043)`)
* (macOS) When fixing executable for codesigning, update the value of
  ``vmsize`` field in the ``__LINKEDIT`` segment. (:issue:`[#6039](https://github.com/pyinstaller/pyinstaller/issues/6039)`)
* Downgrade messages about missing dynamic link libraries from ERROR to
  WARNING. (:issue:`[#6015](https://github.com/pyinstaller/pyinstaller/issues/6015)`)
* Fix a bytecode parsing bug which caused tuple index errors whilst scanning
  modules which use :mod:`ctypes`. (:issue:`[#6007](https://github.com/pyinstaller/pyinstaller/issues/6007)`)
* Fix an error when rhtooks for ``pkgutil`` and ``pkg_resources`` are used
  together. (:issue:`[#6018](https://github.com/pyinstaller/pyinstaller/issues/6018)`)
* Fix architecture detection on Apple M1 (:issue:`[#6029](https://github.com/pyinstaller/pyinstaller/issues/6029)`)
* Fix crash in windowed bootloader when the traceback for unhandled exception
  cannot be retrieved. (:issue:`[#6070](https://github.com/pyinstaller/pyinstaller/issues/6070)`)
</tr></table> 

... (truncated)

Commits

• 5a02f55 release v4.5.1
• f904242 set documentation version in README for release
• f56f509 doc: fix sphinx warning
• 43812c3 doc: rebuild man pages
• d95d429 prepare for release 4.5.1
• a34b1b3 Fix hookloader function bug when whitespaces in path
• 486ecc0 tests: remove altgraph tests
• 8afdd83 tests: remove old_suite tests, they're obsolete now.
• 3939263 Back to development: v4.6
• 39e508c Revert "set documentation version in README for release"
• Additional commits viewable in compare view

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