Update yourls

Changes:

- https://github.com/YOURLS/docker-yourls/commit/8cf42d1: Apply tweaks from the library

library/yourls

@@ -6,15 +6,15 @@ GitRepo: https://github.com/YOURLS/docker-yourls.git
 
 Tags: 1.7.3-apache, 1.7-apache, 1-apache, apache, 1.7.3, 1.7, 1, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le
-GitCommit: ccc236cf0c3dd8e527706925e5259f700c2102bb
+GitCommit: 8cf42d12d56851882755799adc9142f9257b3feb
 Directory: apache
 
 Tags: 1.7.3-fpm, 1.7-fpm, 1-fpm, fpm
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le
-GitCommit: f7ed6e15964d9e9025267598541e5e93e7924f8f
+GitCommit: 8cf42d12d56851882755799adc9142f9257b3feb
 Directory: fpm
 
 Tags: 1.7.3-fpm-alpine, 1.7-fpm-alpine, 1-fpm-alpine, fpm-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le
-GitCommit: f7ed6e15964d9e9025267598541e5e93e7924f8f
+GitCommit: 8cf42d12d56851882755799adc9142f9257b3feb
 Directory: fpm-alpine