Make sure to reuse env flags for linux python builds #267

Job	Run time
cardinal (linux-aarch64, apt, ubuntu-20.04, linux-aarch64)	1m 17s
modaudio (linux-x86_64, apt, ubuntu-22.04, win64)	59s
cardinal (linux-armhf, apt, ubuntu-20.04, linux-armhf)	1m 17s
common (linux-aarch64, apt, ubuntu-22.04, linux-aarch64)	1m 17s
modaudio (macos-universal-10.15, homebrew, macos-11, macos-universal-10.15)	2m 22s
cardinal (linux-i686, apt, ubuntu-20.04, linux-i686)	1m 15s
common (linux-armhf, apt, ubuntu-22.04, linux-armhf)	1m 6s
modaudio (win64, apt, ubuntu-22.04, win64)	1m 11s
cardinal (linux-riscv64, apt, ubuntu-20.04, linux-riscv64)	1m 17s
common (linux-i686, apt, ubuntu-22.04, linux-i686)	1m 1s
cardinal (linux-x86_64, apt, ubuntu-20.04, linux-x86_64)	1m 17s
common (linux-riscv64, apt, ubuntu-22.04, linux-riscv64)	1m 11s
cardinal (macos-universal-10.15, homebrew, macos-11, macos-universal-10.15)	1m 14s
common (linux-x86_64, apt, ubuntu-22.04, linux-x86_64)	1m 15s
cardinal (wasm, apt, ubuntu-22.04, wasm)	1m 9s
common (macos, homebrew, macos-11, macos)	1m 16s
cardinal (win32, apt, ubuntu-22.04, win32)	58s
common (macos-universal, homebrew, macos-11, macos-universal)	1m 16s
cardinal (win64, apt, ubuntu-22.04, win64)	1m 16s
common (macos-universal-10.15, homebrew, macos-11, macos-universal-10.15)	1m 15s
common (wasm, apt, ubuntu-22.04, wasm)	1m 17s
common (win32, apt, ubuntu-22.04, win32)	1m 1s
common (win64, apt, ubuntu-22.04, win64)	1s
jack2	0s
plugins	0s
qt	0s
carla	0s
	27m 28s

Provide feedback