[python] Reuse Parquet fragment metadata for single-file reads - #9881

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: stCarolas/setup-maven@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

write(org.apache.paimon.data.BinaryWriter,int,java.lang.Object,org.apache.paimon.types.DataType,org.apache.paimon.data.serializer.Serializer<?>) in org.apache.paimon.data.BinaryWriter has been deprecated

setNullAt(int,org.apache.paimon.types.DataType) in org.apache.paimon.data.BinaryArrayWriter has been deprecated

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

sun.misc.Unsafe is internal proprietary API and may be removed in a future release

execute(org.apache.hc.core5.http.ClassicHttpRequest) in org.apache.hc.client5.http.impl.classic.CloseableHttpClient has been deprecated