🐛 Fix various minor issues (discovered via #162)

- Renaming the configuration files from `www.conf` to the backup
  (`disabled-by-phpmon`) will now succeed if the `disabled-by-phpmon`
  file already exists. This would fail if the `disabled-by-phpmon` file
  already existed in previous builds.

- The PHP-FPM alert when there's an issue with a missing socket
  configuration file has been tweaked and now contains a workaround if
  you want to run a newer version of PHP (e.g. PHP 8.2) that is not
  officially supported by Valet yet.

- When attempting to list the PHP version numbers, the `parse()` method
  is now used, as opposed to `PhpVersionNumber.make()`, which couldn't
  correctly handle pre-release versions of PHP.

- Updated tests to reflect these changes to `PhpVersionNumber`.

phpmon/Common/PHP/PHP Version/PhpVersionNumber.swift

@@ -13,7 +13,7 @@ public struct PhpVersionNumberCollection: Equatable {
     
     public static func make(from versions: [String]) -> Self {
         return PhpVersionNumberCollection(
-            versions: versions.map { PhpVersionNumber.make(from: $0)! }
+            versions: versions.map { try! PhpVersionNumber.parse($0) }
         )
     }