Bump Colab Base Image - July (#1490)

let's bump the image, this was released a couple days ago. while we were
planning a release with the prior Base image, let's save us a release
and get our self to the latest

Author: calderjo

config.txt

@@ -1,4 +1,4 @@
 BASE_IMAGE=us-docker.pkg.dev/colab-images/public/runtime
-BASE_IMAGE_TAG=release-colab_20250603-060055_RC00
+BASE_IMAGE_TAG=release-colab_20250626-060053_RC00
 CUDA_MAJOR_VERSION=12
 CUDA_MINOR_VERSION=5