TestPublish_RefreshCachedBundle on windows needs rewrite

[ludfjig]

Describe the bug

Because of issues with low resolution of the time.Now() on windows, this test usually fails on windows (but passes on linux). The current workaround is to do a time.Sleep(), which is an ugly hack. We should improve the testing by for example mocking the .ModTime()

To Reproduce

Run the test on windows

Expected behavior

The test should pass without time.Sleep()

Porter Command and Output

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

Version

Copy the output of porter version below

porter v1.0.15 (be5c66a)