Add composer 2.1.12, remove composer 2.1.11
Add composer 2.1.12, remove composer 2.1.11

for stack(s) cflinuxfs3 [#180249934]

cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack