Add ca certs back into Docker image (#35)

website/Dockerfile

@@ -3,7 +3,8 @@ WORKDIR /app
 COPY . .
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags "-s -w" -o jwksetcom -trimpath cmd/server/*.go
 
-FROM scratch
+# CA certificates required for reCAPTCHA verification on jwkset.com
+FROM alpine:latest
 COPY --from=builder /app/jwksetcom /jwksetcom
 USER 10001
 ENV CONFIG_JSON='{}'