buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c if [ \"$MCORE_TRIGGERED_TESTING\" = \"true\" ]; then echo \"⚙️ MCore testing mode: skipping --locked flag\"; uv sync --only-group build && uv sync --link-mode copy --all-extras --all-groups; else uv sync --locked --only-group build && uv sync --link-mode copy --locked --all-extras --all-groups; fi && uv cache prune ${UV_CACHE_PRUNE_ARGS}" did not complete successfully: exit code: 2