[Windows] Update cabal pester test

[al-cheb]

Description

2022-02-22T00:34:39.3388641Z  vhd:   [-] cabal config was modified and exists 166ms (164ms|2ms)
2022-02-22T00:34:39.3399886Z  vhd:    Expected path 'C:\cabal' to exist, but it did not exist.
2022-02-22T00:34:39.3400920Z  vhd:    at $env:CABAL_DIR | Should -Exist, C:\image\Tests\Haskell.Tests.ps1:53
2022-02-22T00:34:39.3405661Z  vhd:    at <ScriptBlock>, C:\image\Tests\Haskell.Tests.ps1:53

https://gitlab.haskell.org/haskell/ghcup-hs/-/commit/2c583bcae9e333693b9bd8fc353bb0dcb2af71df - Fix NoAdjustCabalConfig on windows

Fix:

• Add test to check cabal folder

Related issue:

#5119

Check list

• Related issue / work item is attached
• Tests are written (if applicable)
• Documentation is updated (if applicable)
• Changes are tested and related VM images are successfully generated

[al-cheb]

@hasufell, Could you please review?

[krokofant]

Are there different kinds of reviews or is this message just confusing? Since hasufell has reviewed it, why is it still waiting for approving review? 🤔

[miketimofeev]

Are there different kinds of reviews or is this message just confusing? Since hasufell has reviewed it, why is it still waiting for approving review? 🤔

at least one reviewer with write access that's the main difference