test: use npm sandbox in test-npm-install#9079
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Checklist
make -j8 test(UNIX), orvcbuild test nosign(Windows) passesAffected core subsystem(s)
test
Description of change
npm should run in a sandbox to avoid unwanted interactions. Without this change, npm would read the userconfig file
$HOME/.npmrcwhich may contain configs that break this test.Not completely sure if we should set the
HOMEvariable as I decided to do here, or track down all the variables that it influences withnpm config ls -land set them all individually. This seems more future-proof, and since it's just to run npm it should be ok.Taken inspiration from https://github.com/gibfahn/node/blob/a3c1505cd9fd5e26aebdbb2269515f9d3deb11db/tools/test-npm.sh#L44-L48 (ongoing PR #7867) with the
HOMEvar change that may be a good idea there as well, cc @gibfahn .Fixes: #9074 - test run: https://ci.nodejs.org/job/node-test-commit-freebsd/4799/
cc @nodejs/testing @thealphanerd@Trott