Revert "Update to a version of alpine built for arm/64"

This reverts commit 9b62a928c9d24daa15c9281aa990dcd0d47fb799.

Reason for revert: It was already addressed upstream and it would be best to cherry-pick from more recent releases.

Change-Id: If36e9743306beb62a4b8fb8656dd01af081cd8e0
diff --git a/src/test/docker/docker-syslog-ng-stdout/Dockerfile b/src/test/docker/docker-syslog-ng-stdout/Dockerfile
index d4a810a..11f3059 100644
--- a/src/test/docker/docker-syslog-ng-stdout/Dockerfile
+++ b/src/test/docker/docker-syslog-ng-stdout/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.22.1
+FROM alpine:3.4
 MAINTAINER Ryan Schlesinger <ryan@outstand.com>
 
 RUN apk add --no-cache bash syslog-ng