workflows: build-pillow: use uv, RISE registry in build step

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>

Author: threexc

.github/workflows/build-pillow.yml

@@ -79,6 +79,11 @@ jobs:
           # wheel_builder/wheel_builder/Pillow/gitlab-ci.yml.
           HOST_CMAKE_FLAGS: "-DWITH_SIMD=0 -DAOM_TARGET_CPU=generic"
           CIBW_ENVIRONMENT_PASS_LINUX: HOST_CMAKE_FLAGS
+          CIBW_BUILD_FRONTEND: "build[uv]"
+          CIBW_ENVIRONMENT: >-
+            UV_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            UV_INDEX_STRATEGY=unsafe-best-match
+            UV_ONLY_BINARY=:all:
 
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with: