[CI][Docs] Publish docs to https://arrow.apache.org/java/main/ on push #547
Description
Describe the enhancement requested
ADBC does this in https://github.com/apache/arrow-adbc/blob/main/.github/workflows/nightly-website.yml .
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ADBC does this in https://github.com/apache/arrow-adbc/blob/main/.github/workflows/nightly-website.yml .