[SPARK-51662][SQL] Make OrcFileFormat comparable

### What changes were proposed in this pull request?

Make OrcFileFormat comparable.

### Why are the changes needed?

This is important to correctly compare fixed-point/single-pass Analyzer logical plans with `HadoopFsRelation`s.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Existing tests.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #50454 from vladimirg-db/vladimir-golubev_data/make-orc-file-format-comparable.

Authored-by: Vladimir Golubev <[email protected]>
Signed-off-by: Max Gekk <[email protected]>

Author: vladimirg-db

Diff for: sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcFileFormat.scala

@@ -61,6 +61,10 @@ class OrcFileFormat extends FileFormat with DataSourceRegister with Serializable
 
   override def toString: String = "ORC"
 
+  override def hashCode(): Int = getClass.hashCode()
+
+  override def equals(other: Any): Boolean = other.isInstanceOf[OrcFileFormat]
+
   override def inferSchema(
       sparkSession: SparkSession,
       options: Map[String, String],