Merge pull request #128 from rancher/renovate/alpine-3.x

Update alpine Docker tag to v3.18.3

Author: jakefhyde

package/Dockerfile

@@ -1,3 +1,3 @@
-FROM alpine:3.16.0
+FROM alpine:3.18.3
 COPY bin/rancher-system-agent /usr/bin/
 CMD ["rancher-system-agent"]

package/Dockerfile.suc

@@ -1,4 +1,4 @@
-ARG ALPINE=alpine:3.16.0
+ARG ALPINE=alpine:3.18.3
 FROM ${ALPINE} as kubectl
 RUN apk add -U curl
 RUN ARCH=$(uname -m) && \
@@ -8,7 +8,7 @@ RUN ARCH=$(uname -m) && \
     chmod +x /usr/bin/kubectl
 RUN /usr/bin/kubectl version --client
 
-ARG ALPINE=alpine:3.16.0
+ARG ALPINE=alpine:3.18.3
 FROM ${ALPINE}
 
 RUN mkdir /opt/rancher-system-agent-suc