windows hooks not working in vanilla powershell

[extrawurst]

related #235 #313

it appears that running gitui in vanilla powershell (no git bash, no wsl) fail:

failures:

---- sync::hooks::tests::test_commit_msg_no_block_but_alter stdout ----
thread 'sync::hooks::tests::test_commit_msg_no_block_but_alter' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os 
{ code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:360:57

---- sync::hooks::tests::test_hooks_commit_msg_ok stdout ----
thread 'sync::hooks::tests::test_hooks_commit_msg_ok' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:207:57

---- sync::hooks::tests::test_hooks_commit_msg_reject stdout ----
thread 'sync::hooks::tests::test_hooks_commit_msg_reject' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:306:57

---- sync::hooks::tests::test_hooks_commit_msg_reject_in_subfolder stdout ----
thread 'sync::hooks::tests::test_hooks_commit_msg_reject_in_subfolder' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:336:18  

---- sync::hooks::tests::test_post_commit_hook_reject_in_subfolder stdout ----
thread 'sync::hooks::tests::test_post_commit_hook_reject_in_subfolder' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:382:60  

---- sync::hooks::tests::test_pre_commit_fail_py stdout ----
thread 'sync::hooks::tests::test_pre_commit_fail_py' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, 
kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:287:47

---- sync::hooks::tests::test_pre_commit_fail_sh stdout ----
thread 'sync::hooks::tests::test_pre_commit_fail_sh' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, 
kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:241:47

---- sync::hooks::tests::test_pre_commit_py stdout ----
thread 'sync::hooks::tests::test_pre_commit_py' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:264:47

---- sync::hooks::tests::test_pre_commit_sh stdout ----
thread 'sync::hooks::tests::test_pre_commit_sh' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "The system cannot find the file specified." })', asyncgit\src\sync\hooks.rs:225:47


failures:
    sync::hooks::tests::test_commit_msg_no_block_but_alter
    sync::hooks::tests::test_hooks_commit_msg_ok
    sync::hooks::tests::test_hooks_commit_msg_reject
    sync::hooks::tests::test_hooks_commit_msg_reject_in_subfolder
    sync::hooks::tests::test_post_commit_hook_reject_in_subfolder
    sync::hooks::tests::test_pre_commit_fail_py
    sync::hooks::tests::test_pre_commit_fail_sh
    sync::hooks::tests::test_pre_commit_py
    sync::hooks::tests::test_pre_commit_sh

test result: FAILED. 113 passed; 9 failed; 0 ignored; 0 measured; 0 filtered out; finished in 59.96s

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.