buildx failed with: ERROR: failed to solve: process "/bin/sh -c echo \"cython<3\" > /tmp/constraint.txt && echo \"pyyaml==5.4.1\" >> /tmp/constraint.txt && export PIP_CONSTRAINT=/tmp/constraint.txt && export USE_STATIC_REQUIREMENTS=1 && python -m pip install salt~=3005.0" did not complete successfully: exit code: 1