downgrade libssl so that we still have access to libcrypto1.0.0
downgrade libssl so that we still have access to libcrypto1.0.0

- this is needed for php unit tests
[#164328213]

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci