added the last missing dependencies, now everything works again

Dockerfile

@@ -20,6 +20,7 @@ RUN \
 	python3-dev        \
 	py3-psycopg2       \
 	py3-pillow         \
+	py3-pip            \
 	redis              \
 	nginx              \
 	make              \
@@ -31,9 +32,12 @@ RUN \
 	ffmpeg             \
 	libpq              \
 	libmagic           \
+	libxml2-dev        \
+	libxslt-dev        \
 	libffi-dev         \
 	zlib-dev           \
 	openldap-dev       \
+	cargo              \
 	rust && \
 	\
 	\