Added a missing py.typed file for wheel #45

Job	Run time
Test on ubuntu-latest / Python 3.8	19s
Test on ubuntu-latest / Python 3.9	16s
Test on ubuntu-latest / Python 3.10	19s
Test on ubuntu-latest / Python 3.11	21s
Test on ubuntu-latest / Python 3.12	13s
Test on ubuntu-latest / Python pypy-3.8	22s
Test on ubuntu-latest / Python pypy-3.9	21s
Test on ubuntu-latest / Python pypy-3.10	28s
Test on windows-latest / Python 3.8	36s
Test on windows-latest / Python 3.9	34s
Test on windows-latest / Python 3.10	36s
Test on windows-latest / Python 3.11	40s
Test on windows-latest / Python 3.12	30s
Test on windows-latest / Python pypy-3.8	1m 25s
Test on windows-latest / Python pypy-3.9	1m 27s
Test on windows-latest / Python pypy-3.10	1m 26s
Test on macos-latest / Python 3.10	37s
Test on macos-latest / Python 3.11	49s
Test on macos-latest / Python 3.12	38s
	11m 57s

Provide feedback