Cleanup disk space in image cache push jobs

[amoghrajesh]

In some recent jobs, we saw some issues such related to disk space: https://github.com/apache/airflow/actions/runs/18071055239/job/51422086979

  #59 loading layer 2f7fcd295b18 61.07MB / 61.07MB 40.3s done
  #59 ERROR: write /usr/python/lib/python3.10/site-packages/scipy/linalg/cython_lapack.cpython-310-x86_64-linux-gnu.so: no space left on device
  
  #56 exporting to docker image format
  #56 sending tarball 74.3s done
  #56 ERROR: rpc error: code = Unknown desc = write /usr/python/lib/python3.10/site-packages/scipy/linalg/cython_lapack.cpython-310-x86_64-linux-gnu.so: no space left on device
  ------
   > exporting to docker image format:
  ------
  ------
   > importing to docker:
  ------
  ERROR: failed to build: failed to solve: rpc error: code = Unknown desc = write /usr/python/lib/python3.10/site-packages/scipy/linalg/cython_lapack.cpython-310-x86_64-linux-gnu.so: no space left on device
Your image build failed. It could be caused by conflicting dependencies.

As a potential improvement, we could reuse of disk cleanup job in these CI workflows too, right after checkout to clean some clutter up.

I do not see side effects because the cleanup step:

• Removes large unused toolchains (.NET, GraalVM, Android SDK, etc.)
• Cleans package caches (APT, pip, npm)

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[github-actions]

Backport successfully created: v3-1-test

Status	Branch	Result
✅	v3-1-test