build(deps): Bump alpine from 3.16.2 to 3.16.3 (#388)

Bumps alpine from 3.16.2 to 3.16.3.


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Dockerfile

@@ -5,7 +5,7 @@
 
 # TODO: Using alpine for now due to easier installation of skopeo
 #       Will use distroless after incorporating skopeo into the webhook directly
-FROM alpine:3.16.2
+FROM alpine:3.16.3
 RUN ["apk", "add", "--no-cache", "--repository=http://dl-cdn.alpinelinux.org/alpine/edge/community", "skopeo>=1.2.0"]
 
 COPY k8s-image-swapper /