Update alpine version

Dockerfile

@@ -9,7 +9,7 @@ COPY . /app
 ARG TARGETARCH
 RUN cd /app && packr2 && env CGO_ENABLED=1 GOOS=linux GOARCH=${TARGETARCH} go build -a -tags netgo -ldflags '-linkmode external -extldflags -static -s -w' -o ovpn-admin && packr2 clean
 
-FROM alpine:3.16
+FROM alpine:3.19
 WORKDIR /app
 COPY --from=backend-builder /app/ovpn-admin /app
 ARG TARGETARCH

Dockerfile.openvpn

@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:3.19
 ARG TARGETARCH
 RUN apk add --update bash openvpn easy-rsa iptables  && \
     ln -s /usr/share/easy-rsa/easyrsa /usr/local/bin && \