Log Message:
php-composer: Update to 2.0.11

Upstream Release Notes:

2.0.11
 - Reverted "Fixed runtime autoloader registration (for plugins and script
   handlers) to prefer the project dependencies over the bundled Composer
   ones" as it caused more problems than expected

2.0.10
 - Added COMPOSER_MAX_PARALLEL_HTTP env var to let people set a lower amount
   of parallel requests if needed
 - Fixed autoloader registration when plugins are loaded, which may impact
   plugins relying on this bug (if you use symfony/flex make sure you upgrade
   it to 1.12.2+ to fix dump-env issues)
 - Fixed exec command suppressing output in some circumstances
 - Fixed Windows/cmd.exe support for script handlers defined as path/to/foo,
   which are now rewritten internally to path\to\foo when needed
 - Fixed bin handling on Windows for PHP scripts, to more closely match
   symlinks and allow @php vendor/bin/foo to work cross-platform
 - Fixed Git for Windows/Git Bash not being detected correctly as an
   interactive shell (regression since 2.0.7)
 - Fixed regression handling some private Bitbucket repository clones
 - Fixed Ctrl-C/SIGINT handling during downloads to correctly abort as soon as
   possible
 - Fixed runtime autoloader registration (for plugins and script handlers) to
   prefer the project dependencies over the bundled Composer ones
 - Fixed numeric default branches being aliased as 9999999-dev internally.
   This alias now only applies to default branches being non-numeric
   (e.g. dev-main)
 - Fixed support for older lib-sodium versions
 - Fixed various minor issues