Add composer 1.10.6, remove composer 1.10.5
Add composer 1.10.6, remove composer 1.10.5

for stack(s) cflinuxfs3 [#172692399]

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