Update cgr.dev/chainguard/python:latest-dev Docker digest to 507e6a9

Author: renovate[bot]

.github/workflows/test-system.yml

@@ -321,7 +321,7 @@ jobs:
     name: "python on chainguard-dev"
     runs-on: ubuntu-latest
     container:
-      image: cgr.dev/chainguard/python:latest-dev@sha256:c2ac4118658f7f5a07fcdf31dafb7adca7e7edaf3ad5121585b5f83b79bd85ed
+      image: cgr.dev/chainguard/python:latest-dev@sha256:507e6a93094b60ec1d1af0f5fcc88355411ddbb33de7eee31a6481cd2cce16b8
       options: --user root --entrypoint /bin/sh
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2