Update Dockerfile

Author: delcroip

Dockerfile

@@ -1,13 +1,16 @@
 # syntax=docker/dockerfile:1.4
 
 FROM alpine:3.19 AS downloader
-RUN apk add --no-cache curl
-RUN curl -o Dockerfile.pg_jsonschema https://raw.githubusercontent.com/supabase/pg_jsonschema/master/dockerfiles/db/Dockerfile
+RUN apk add --no-cache git
+RUN git clone https://github.com/supabase/pg_jsonschema.git
+WORKDIR /pg_jsonschema
+RUN ln -s dockerfiles/db/Dockerfile Dockerfile.pg_jsonschema
 
 FROM scratch AS pg_jsonschema
-COPY --from=downloader Dockerfile.pg_jsonschema .
+COPY --from=downloader /pg_jsonschema /
 
 FROM pg_jsonschema AS base
+
 # Script to detect whether the database has finished initializing
 COPY ["true_isready.sh", "/usr/local/bin/"]
 COPY ["database scripts/00_dump.sql", "database scripts/0[2345]_*.sql", "database scripts/json_schema_extension.sql", "/docker-entrypoint-initdb.d/"]