ci: add workflow_dispatch triggers (#55) #479

Job	Run time
Get current version	1m 55s
Make full distribution / Build binaries (ubuntu-20.04, parallel=false)	4m 41s
Make full distribution / Build binaries (macos-13, parallel=false)	7m 35s
Make full distribution / Build binaries (macos-14, parallel=false)	2m 4s
Make full distribution / Build binaries (windows-2022, parallel=false)	8m 20s
Make full distribution / Build binaries (windows-2022, parallel=true)	10m 21s
Make full distribution / Build docs	8m 7s
Make full distribution / Build distribution (ubuntu-22.04)	24m 15s
Make full distribution / Build distribution (macos-13)	35m 53s
Make full distribution / Build distribution (macos-14)	45m 20s
Make full distribution / Build distribution (windows-2022)	35m 2s
Make full distribution / Build distribution (windows-2022)	38m 36s
	3h 42m 9s

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