`mage build` requires admin rights on windows

[ludfjig]

Describe the bug

A clear and concise description of what the bug is.
Running mage build in PowerShell (non-admin) on windows results in "Access denied". For some reason, the temp folders are created in C:\WINDOWS\ which is a weird place and should be changed.

PS C:\Users\lliljenberg\dev\porter> mage build
error creating temp directory: mkdir C:\WINDOWS\porter188805143: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter188805143: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter739671479: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter905244407: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter501410611: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter614105515: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter739671479: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter905244407: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter501410611: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter614105515: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter229574723: Access is denied.
error creating temp directory: mkdir C:\WINDOWS\porter229574723: Access is denied.
Error: running "bin\porter mixin install terraform --version canary --url=" failed with exit code 1

To Reproduce

Steps to reproduce the behavior:

1. Run mage build in non-admin PS promp.

Expected behavior

Should work without elevated prompt

Porter Command and Output

$ porter [e.g. install --param foo=bar --credential-set azure]
lots of output

Version

main branch

[ludfjig]

Seems to be flake, can't reproduce