chore: bump alpine from 3.16 to 3.18 in /dogfood (coder#7847)

dependabot[bot] · web-flow · commit b79bfb28749a · 2023-06-05T11:26:58.000-05:00
Co-authored-by: dependabot[bot] &lt;49699333+dependabot[bot]@users.noreply.github.com&gt;
diff --git a/dogfood/Dockerfile b/dogfood/Dockerfile
@@ -75,7 +75,7 @@ RUN mkdir --parents "$GOPATH" && \
 	mv /tmp/bin/yq /tmp/bin/yq4 && \
 	go install github.com/golang/mock/mockgen@v1.6.0
 
-FROM alpine:3.16 as proto
+FROM alpine:3.18 as proto
 WORKDIR /tmp
 RUN apk add curl unzip
 RUN curl -L -o protoc.zip https://github.com/protocolbuffers/protobuf/releases/download/v21.5/protoc-21.5-linux-x86_64.zip
