Fix upgrading task in task

[deviantintegral]

This will fix this error when upgrading task originally reported at #164

[drupal:composer:development] 🪠 [Drainpipe] vendor/lullabot/drainpipe/scaffold/env/dotenv.php' missing from autoload-dev files
[drupal:composer:development] 🪠 [Drainpipe] vendor/lullabot/drainpipe/scaffold/env/dotenv.php' missing from autoload-dev files
[drupal:composer:development] Using cached version of task v3.38.0 (30d3c727a434ee3bf69fb69e5d1aa84c3ab401fc2343a2760b4c7808acc689b8)
[drupal:composer:development]
[drupal:composer:development] In Filesystem.php line 372:
[drupal:composer:development]
[drupal:composer:development]   copy(/var/www/html/vendor/bin/task): Failed to open stream: Text file busy
[drupal:composer:development]
[drupal:composer:development]

drainpipe/src/BinaryInstaller.php

Line 253 in c293ed7

$fs->copy($cacheExtractedBinary, $binDestination);

We need to add a remove() call before the copy, so the task binary can be replaced if it is still in use by a process.

Here's a test that should hopefully fail and reproduce this issue: https://github.com/Lullabot/drainpipe/actions/runs/10692591483/job/29641292997

[deviantintegral]

@justafish I wonder if we should consider pulling in bats for testing, which is what ddev uses and is pretty nice for "shell as tests".

[mrdavidburns]

Clever!

[justafish]

nice one 👍