test/ci: replace stash with env variable (#2437)
test/ci: replace stash with env variable (#2437)


lander2k2/tectonic-installer,lander2k2/tectonic-installer,mrwacky42/tectonic-installer,kyoto/tectonic-installer,zbwright/tectonic-installer,s-urbaniak/tectonic-installer,squat/tectonic-installer,s-urbaniak/tectonic-installer,zbwright/tectonic-installer,metral/tectonic-installer,mrwacky42/tectonic-installer,alexsomesan/tectonic-installer,derekhiggins/installer,hhoover/tectonic-installer,s-urbaniak/tectonic-installer,mrwacky42/tectonic-installer,cpanato/tectonic-installer,zbwright/tectonic-installer,metral/tectonic-installer,alexsomesan/tectonic-installer,s-urbaniak/tectonic-installer,rithujohn191/tectonic-installer,squat/tectonic-installer,kyoto/tectonic-installer,hhoover/tectonic-installer,lander2k2/tectonic-installer,zbwright/tectonic-installer,metral/tectonic-installer,alexsomesan/tectonic-installer,s-urbaniak/tectonic-installer,cpanato/tectonic-installer,kalmog/tectonic-installer,rithujohn191/tectonic-installer,justaugustus/tectonic-installer,justaugustus/tectonic-installer,justaugustus/tectonic-installer,squat/tectonic-installer,zbwright/tectonic-installer,hhoover/tectonic-installer,kalmog/tectonic-installer,derekhiggins/installer,alexsomesan/tectonic-installer,rithujohn191/tectonic-installer,mrwacky42/tectonic-installer,mrwacky42/tectonic-installer,kyoto/tectonic-installer,rithujohn191/tectonic-installer,alexsomesan/tectonic-installer,metral/tectonic-installer,kyoto/tectonic-installer,metral/tectonic-installer,rithujohn191/tectonic-installer,cpanato/tectonic-installer,kalmog/tectonic-installer,hhoover/tectonic-installer,cpanato/tectonic-installer,squat/tectonic-installer,hhoover/tectonic-installer,kyoto/tectonic-installer,lander2k2/tectonic-installer,justaugustus/tectonic-installer,justaugustus/tectonic-installer