Log Message:
php-composer: update to 1.10.3

1.10.2
* Added --1 flag to self-update command which can be added to automated \ 
self-update runs to make sure it won't automatically jump to 2.0 once that is \ 
released
* Fixed path repository symlinks being made relative when the repo url is \ 
defined as absolute paths
* Fixed potential issues when using "composer ..." in scripts and \ 
composer/composer was also required in the project
* Fixed 1.10.0 regression when downloading GitHub archives from non-API URLs
* Fixed handling of malformed info in fund command
* Fixed Symfony5 compatibility issues in a few commands

1.10.3
* Fixed invalid --2 flag warning in self-update when no channel is requested