Log Message:
php-composer: Update to 2.0.8

Upstream release Notes:

2.0.8
 - Fixed packages with aliases not matching conflicts which match the alias
 - Fixed invalid reports of uncommitted changes when using non-default remotes
   in vendor dir
 - Fixed curl error handling edge cases
 - Fixed cached git repositories becoming stale by having a git gc applied to
   them periodically
 - Fixed issue initializing plugins when using dev packages
 - Fixed update --lock / mirrors failing to update in some edge cases
 - Fixed partial update with --with-dependencies failing in some edge cases
   with some nonsensical error

2.0.7
 - Fixed detection of TTY mode, made input non-interactive automatically if
   STDIN is not a TTY
 - Fixed root aliases not being present in lock file if not required by
   anything else
 - Fixed remove command requiring a lock file to be present
 - Fixed Composer\InstalledVersions to always contain up to date data during
   installation
 - Fixed status command breaking on slow networks
 - Fixed order of POST_PACKAGE_* events to occur together once all
   installations of a package batch are done