Updated nginx alpine images to use alpine 3.9 as a base.

library/nginx

@@ -15,12 +15,12 @@ Directory: mainline/stretch-perl
 
 Tags: 1.15.8-alpine, mainline-alpine, 1-alpine, 1.15-alpine, alpine
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: baa050df601b5e798431a9db458e16f53b1031f6
+GitCommit: 2364fdc54af554d28ef95b7be381677d10987986
 Directory: mainline/alpine
 
 Tags: 1.15.8-alpine-perl, mainline-alpine-perl, 1-alpine-perl, 1.15-alpine-perl, alpine-perl
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: baa050df601b5e798431a9db458e16f53b1031f6
+GitCommit: 2364fdc54af554d28ef95b7be381677d10987986
 Directory: mainline/alpine-perl
 
 Tags: 1.14.2, stable, 1.14
@@ -35,10 +35,10 @@ Directory: stable/stretch-perl
 
 Tags: 1.14.2-alpine, stable-alpine, 1.14-alpine
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: b71469ab815f580ba0ad658a32e91c86f8565ed4
+GitCommit: 2364fdc54af554d28ef95b7be381677d10987986
 Directory: stable/alpine
 
 Tags: 1.14.2-alpine-perl, stable-alpine-perl, 1.14-alpine-perl
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: b71469ab815f580ba0ad658a32e91c86f8565ed4
+GitCommit: 2364fdc54af554d28ef95b7be381677d10987986
 Directory: stable/alpine-perl