Migrate everything to upstream pip packages

This patch migrates all the Python packages I could find to the
packages provided by rules_python. It's possible that there are some
that I missed. In that case, the finder will have to migrate it on
their own.

A future patch will remove the remaining references to the
Debian-packaged Python packages in future patches. This patch here is
solely focused on migrating the existing users.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: Ic7a8ba6110516aa2446ad2ad4e2495fab62d824c
diff --git a/build_tests/BUILD b/build_tests/BUILD
index 718e817..ea05c0b 100644
--- a/build_tests/BUILD
+++ b/build_tests/BUILD
@@ -100,15 +100,14 @@
     srcs = ["python_opencv.py"],
     main = "python_opencv.py",
     target_compatible_with = ["@platforms//os:linux"],
-    deps = ["@opencv_contrib_nonfree_amd64//:python_opencv"],
+    deps = ["@pip//opencv_python"],
 )
 
 py_test(
     name = "python_jinja2",
     srcs = ["python_jinja2.py"],
-    srcs_version = "PY2AND3",
     target_compatible_with = ["@platforms//os:linux"],
-    deps = ["@python_jinja2"],
+    deps = ["@pip//jinja2"],
 )
 
 go_binary(