Add nginx 1.19.8, remove nginx 1.19.7
Add nginx 1.19.8, remove nginx 1.19.7

for stack(s) cflinuxfs3 [#177269723]

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