Fix FromAsCasing in docker build

Dockerfile

@@ -1,6 +1,6 @@
 # Stage to copy the code and fetch dependencies 
 # try to keep the debian version in sync with the distroless version
-FROM golang:1.23-bookworm as base
+FROM golang:1.23-bookworm AS base
 
 ARG VERSION=development
 
@@ -14,18 +14,18 @@ COPY main.go ./
 COPY pkg/ ./pkg
 
 # Stage to test the code
-FROM base as test
+FROM base AS test
 
 RUN go vet -v
 RUN go test -v
 
 # Stage to build the binary
-FROM base as build
+FROM base AS build
 
 RUN CGO_ENABLED=0 go build -ldflags="-X 'github.com/blackskad/go-web-scaffold/environment.Version=${VERSION}'" -o app .
 
 # Stage with the production binary
-FROM gcr.io/distroless/static-debian12 as production
+FROM gcr.io/distroless/static-debian12 AS production
 
 COPY --from=build /work/app /