CI fails with `Binary files a/datafusion/core/example.parquet and b/datafusion/core/example.parquet differ` after changing the version

[alamb]

Describe the bug

When we last updated the version in #11889 the CI doc CI job failed with

https://github.com/apache/datafusion/actions/runs/10303822317/job/28525946989

Binary files a/datafusion/core/example.parquet and b/datafusion/core/example.parquet differ

To Reproduce

Change the version numbers, following model of #11889

Expected behavior

CI should pass

Additional context

@andygrove says: #11889 (comment)

Not sure about the CI failure:

Binary files a/datafusion/core/example.parquet and b/datafusion/core/example.parquet differ

Re-triggered to verify it.

The example.parquet file will change every time we increase the version number, because we store metadata in the parquet file witht the version of DataFusion that was used when writing. This is not ideal... for now I will regenerate this file as part of this PR.

[andygrove]

I did update the release documentation in #11889 to add a cargo test step, which will re-generate this file. Maybe that is good enough. Another option is to have the example explicitly set datafusion.execution.parquet.created_by to a constant value.

[alamb]

Here is a proposed fix: #12034