feat: add Python-alpine Dockerfile for enhanced build process and testing with id-configurator

Signed-off-by: d9pouces <github@19pouces.net>

tests/dockerfiles/Php.Dockerfile

@@ -0,0 +1,16 @@
+FROM php:8.3-cli AS target
+FROM interdiode/id-configurator:latest AS configuration
+COPY --from=target / /src/
+COPY --from=generated-config Php.yaml /config.yaml
+RUN id-configurator apply --config /config.yaml --src /src --dst /dst
+FROM target AS runtime
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends ca-certificates unzip curl \
+    && curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
+    && rm -rf /var/lib/apt/lists/*
+COPY --from=configuration /dst/ /
+RUN mkdir -p /tmp/phptest && cd /tmp/phptest \
+    && composer init -n --name test/phptest \
+    && composer require interdiode/idconfiguratortestpkg \
+    && grep -qx 'test-only package served by the id-configurator integration tests' \
+       vendor/interdiode/idconfiguratortestpkg/marker.txt