build(deps): bump pyspark from 3.5.6 to 4.0.0 in /runtimes/mllib

[dependabot[bot]]

Bumps pyspark from 3.5.6 to 4.0.0.

Commits

• fa33ea0 Preparing Spark release v4.0.0-rc7
• afcba2e Removing test jars and class files
• 297cce1 [SPARK-51272][CORE] Aborting instead of continuing partially completed indete...
• 89d4599 [SPARK-52181][4.0] Increase variant size limit to 128MiB
• fe18186 [SPARK-52188] Fix for StateDataSource where StreamExecution.RUN_ID_KEY is not...
• 942e95e [SPARK-50762][SQL][TEST][FOLLOWUP][4.0] Regenerate sql-udf.sql.out
• 6ffc4ed [SPARK-52122][ML][CONNECT][BRANCH-4.0] Fix DefaultParamsReader RCE vulnerability
• a61ddb8 [SPARK-50762][SQL][TESTS] Add more scalar SQL UDF SQL query tests
• 487bb77 [SPARK-52134] Move execution logic to SqlScriptingExecution and enable Spark ...
• 5de4312 [SPARK-52178][BUILD] Make release scripts to respect SKIP_TAG and ANSWER when...
• Additional commits viewable in compare view

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Superseded by #2259.