add automation for cudf-java docs

[AyodeAwe]

• Adds script to upload the new docs to s3
• Adds a workflow to automate the upload and PR creation.

Tested here:

• https://github.com/rapidsai/literate-octo-potato/pull/850

I tested (using the literate-octo-potato repository) that:

• AWS credentials are correctly assigned through OIDC (all repos in rapidsai have access to the rapidsai-docs bucket via this line)
• (locally) The upload_cudf_java_docs.sh script works correctly
• The find and replace logic to enable the stable docs version for cudf-java works correctly
• The pull request is correctly created. (e.g https://github.com/rapidsai/literate-octo-potato/pull/850)

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[ajschmidt8]

LGTM.

left a few comments

[AyodeAwe]

Changes were tested in this run:

https://github.com/rapidsai/literate-octo-potato/actions/runs/11595596688/job/32284584207