Dockerfile cache tweaks and build layer github cache re-enable

.github/workflows/test-container-build.yml

@@ -82,5 +82,5 @@ jobs:
             file: ${{ matrix.dockerfile }}
             platforms: ${{ matrix.platform }}
             cache-from: type=gha
-            cache-to: type=gha,mode=min
+            cache-to: type=gha,mode=max
 

Dockerfile

@@ -34,7 +34,7 @@ ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabihf"
 ENV OPENSSL_INCLUDE_DIR="/usr/include/openssl"
 # Additional environment variables for cryptography Rust build
 ENV CRYPTOGRAPHY_DONT_BUILD_RUST=1
-RUN --mount=type=cache,target=/tmp/pip-cache \
+RUN --mount=type=cache,id=pip,sharing=locked,target=/tmp/pip-cache \
   pip install \
   --prefer-binary \
   --extra-index-url https://www.piwheels.org/simple \
@@ -43,10 +43,11 @@ RUN --mount=type=cache,target=/tmp/pip-cache \
   --target=/dependencies \
   -r /requirements.txt
 
+
 # Playwright is an alternative to Selenium
 # Excluded this package from requirements.txt to prevent arm/v6 and arm/v7 builds from failing
 # https://github.com/dgtlmoon/changedetection.io/pull/1067 also musl/alpine (not supported)
-RUN --mount=type=cache,target=/tmp/pip-cache \
+RUN --mount=type=cache,id=pip,sharing=locked,target=/tmp/pip-cache \
   pip install \
   --prefer-binary \
   --cache-dir=/tmp/pip-cache \
@@ -54,6 +55,7 @@ RUN --mount=type=cache,target=/tmp/pip-cache \
   playwright~=1.48.0 \
   || echo "WARN: Failed to install Playwright. The application can still run, but the Playwright option will be disabled."
 
+
 # Final image stage
 FROM python:${PYTHON_VERSION}-slim-bookworm
 LABEL org.opencontainers.image.source="https://github.com/dgtlmoon/changedetection.io"