Updated nginx to 1.15.7.

library/nginx

@@ -3,24 +3,24 @@
 Maintainers: NGINX Docker Maintainers <[email protected]> (@nginxinc)
 GitRepo: https://github.com/nginxinc/docker-nginx.git
 
-Tags: 1.15.6, mainline, 1, 1.15, latest
+Tags: 1.15.7, mainline, 1, 1.15, latest
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: f4d30145c60c433966df96f618d78513fee9d322
+GitCommit: 1fe92b86a3c3a6482c54a0858d1fcb22e591279f
 Directory: mainline/stretch
 
-Tags: 1.15.6-perl, mainline-perl, 1-perl, 1.15-perl, perl
+Tags: 1.15.7-perl, mainline-perl, 1-perl, 1.15-perl, perl
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: f4d30145c60c433966df96f618d78513fee9d322
+GitCommit: 1fe92b86a3c3a6482c54a0858d1fcb22e591279f
 Directory: mainline/stretch-perl
 
-Tags: 1.15.6-alpine, mainline-alpine, 1-alpine, 1.15-alpine, alpine
+Tags: 1.15.7-alpine, mainline-alpine, 1-alpine, 1.15-alpine, alpine
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: f4d30145c60c433966df96f618d78513fee9d322
+GitCommit: 1fe92b86a3c3a6482c54a0858d1fcb22e591279f
 Directory: mainline/alpine
 
-Tags: 1.15.6-alpine-perl, mainline-alpine-perl, 1-alpine-perl, 1.15-alpine-perl, alpine-perl
+Tags: 1.15.7-alpine-perl, mainline-alpine-perl, 1-alpine-perl, 1.15-alpine-perl, alpine-perl
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: f4d30145c60c433966df96f618d78513fee9d322
+GitCommit: 1fe92b86a3c3a6482c54a0858d1fcb22e591279f
 Directory: mainline/alpine-perl
 
 Tags: 1.14.1, stable, 1.14