upgrade openvpn package from v2.5.6-r0 to v2.5.6-r1

https://git.alpinelinux.org/aports/commit/main/openvpn?h=3.16-stable&id=eef1d0d2457b111aa2ff44586be3f2eb0c7a5404

Dockerfile

@@ -1,6 +1,6 @@
 FROM docker.io/alpine:3.16.0
 
-ARG OPENVPN_PACKAGE_VERSION=2.5.6-r0
+ARG OPENVPN_PACKAGE_VERSION=2.5.6-r1
 RUN apk add --no-cache openvpn=$OPENVPN_PACKAGE_VERSION
 
 VOLUME /vpn-config

openvpn-package-log.url

@@ -1 +1 @@
-https://git.alpinelinux.org/aports/log/main/openvpn?h=3.15-stable
+https://git.alpinelinux.org/aports/log/main/openvpn?h=3.16-stable