Add entrypoint to setup.py to allow pipx installation #8223

Job	Run time
build packages	25s
code-quality	1m 14s
unit test / python 3.8	1m 48s
unit test / python 3.9	1m 45s
unit test / python 3.10	1m 10s
unit test / python 3.11	57s
verify packages / python 3.8 / ubuntu-latest	32s
verify packages / python 3.9 / ubuntu-latest	35s
verify packages / python 3.10 / ubuntu-latest	36s
verify packages / python 3.11 / ubuntu-latest	32s
verify packages / python 3.8 / macos-12	3m 46s
verify packages / python 3.9 / macos-12	1m 12s
verify packages / python 3.10 / macos-12	2m 12s
verify packages / python 3.11 / macos-12	3m 59s
verify packages / python 3.8 / windows-latest	1m 58s
verify packages / python 3.9 / windows-latest	1m 33s
verify packages / python 3.10 / windows-latest	1m 27s
verify packages / python 3.11 / windows-latest	1m 51s
	27m 32s

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