Switch to non-alpine kindest/haproxy version

Alpine has several challenges, so there's a long running effort in
upstream kubernetes to switch to distroless/debian based images.

Kind recently moved to a non-alpine image, so let us please switch to
the same as well:
github.com/kubernetes-sigs/kind/pull/2373/commits/8f293e11855e6545789ed81dd3507fc6c8359ce8

Signed-off-by: Davanum Srinivas <[email protected]>

Author: dims

test/infrastructure/docker/third_party/forked/loadbalancer/const.go

@@ -17,7 +17,7 @@ limitations under the License.
 package loadbalancer
 
 // Image defines the loadbalancer image:tag
-const Image = "kindest/haproxy:2.1.1-alpine"
+const Image = "kindest/haproxy:v20210715-a6da3463"
 
 // ConfigPath defines the path to the config file in the image
 const ConfigPath = "/usr/local/etc/haproxy/haproxy.cfg"