build: move Dockerfile under src/main/docker

- Restore the Quarkus-default location for the container build recipe
- Drop the stale !Dockerfile entry from .dockerignore (file no longer at root)

src/main/docker/Dockerfile

@@ -0,0 +1,29 @@
+## Stage 1 : build with maven builder image with native capabilities
+FROM quay.io/quarkus/ubi-quarkus-mandrel-builder-image:jdk-21 AS build
+COPY --chown=quarkus:quarkus mvnw /code/mvnw
+COPY --chown=quarkus:quarkus .mvn /code/.mvn
+COPY --chown=quarkus:quarkus pom.xml /code/
+USER quarkus
+WORKDIR /code
+RUN ./mvnw -B org.apache.maven.plugins:maven-dependency-plugin:3.1.2:go-offline
+COPY src /code/src
+RUN ./mvnw package -Dnative
+
+## Stage 2 : create the docker final image
+FROM quay.io/quarkus/quarkus-micro-image:2.0
+WORKDIR /work/
+COPY --from=build /code/target/*-runner /work/application
+
+# set up permissions for user `1001`
+RUN chmod 775 /work /work/application \
+  && chown -R 1001 /work \
+  && chmod -R "g+rwX" /work \
+  && chown -R 1001:root /work
+
+EXPOSE 8080
+USER 1001
+
+#TimeZone
+ENV TZ="America/Santiago"
+
+CMD ["./application", "-Dquarkus.http.host=0.0.0.0"]