Add composer 2.4.3, remove composer 2.4.2 (#718)
Add composer 2.4.3, remove composer 2.4.2 (#718)

for stack(s) cflinuxfs3 [#183545078]
cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack