Fix CI pip externally-managed-environment error (#4360)

* Add missing Makefile PHONY target
* Add Dockerfile-CUDA vim modeline
* Fix CI pip externally-managed-environment error

Makefile

@@ -142,6 +142,7 @@ stash-macapp: flags-release flags-pie stash
 
 # build-cc- targets should be run within the compiler docker container
 
+.PHONY: build-cc-windows
 build-cc-windows: export GOOS := windows
 build-cc-windows: export GOARCH := amd64
 build-cc-windows: export CC := x86_64-w64-mingw32-gcc

docker/build/x86_64/Dockerfile-CUDA

@@ -48,3 +48,5 @@ ENV NVIDIA_DRIVER_CAPABILITIES=video,utility
 ENV STASH_CONFIG_FILE=/root/.stash/config.yml
 EXPOSE 9999
 ENTRYPOINT ["docker-entrypoint.sh", "stash"]
+
+# vim: ft=dockerfile

docker/ci/x86_64/Dockerfile

@@ -13,7 +13,7 @@ FROM --platform=$TARGETPLATFORM alpine:latest AS app
 COPY --from=binary /stash /usr/bin/
 RUN apk add --no-cache --virtual .build-deps gcc python3-dev musl-dev \
     && apk add --no-cache ca-certificates python3 py3-requests py3-requests-toolbelt py3-lxml py3-pip ffmpeg vips-tools ruby tzdata \
-    && pip install mechanicalsoup cloudscraper bencoder.pyx \
+    && pip install --user --break-system-packages mechanicalsoup cloudscraper bencoder.pyx \
     && gem install faraday \
     && apk del .build-deps
 ENV STASH_CONFIG_FILE=/root/.stash/config.yml