Update haproxy

Changes:

- https://github.com/docker-library/haproxy/commit/9fd5e8f: Update to 1.9.6

library/haproxy

@@ -4,14 +4,14 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/haproxy.git
 
-Tags: 1.9.5, 1.9, 1, latest
+Tags: 1.9.6, 1.9, 1, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 6314d16d80c9aa2e5becba771e5ef856ac82186c
+GitCommit: 9fd5e8fbbf8898027be1fed2aef616495fc09174
 Directory: 1.9
 
-Tags: 1.9.5-alpine, 1.9-alpine, 1-alpine, alpine
+Tags: 1.9.6-alpine, 1.9-alpine, 1-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 6314d16d80c9aa2e5becba771e5ef856ac82186c
+GitCommit: 9fd5e8fbbf8898027be1fed2aef616495fc09174
 Directory: 1.9/alpine
 
 Tags: 1.8.19, 1.8