Merge pull request #282 from tinkerbell/dependabot/docker/alpine-3.18.3

Bump alpine from 3.18.2 to 3.18.3

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.18.2
+FROM alpine:3.18.3
 
 # Define args for the target platform so we can identify the binary in the Docker context.
 # These args are populated by Docker. The values should match Go's GOOS and GOARCH values for