perf: Set ffi_safe flag conditionally for native_iceberg_compat scans [EXPERIMENTAL] #4927

Job	Run time
Lint	38s
Build Native Library (macOS)	24m 31s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [shuffle]	52m 32s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [shuffle]	27m 48s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [fuzz]	35m 1s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [expressions]	28m 11s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [sql]	12m 53s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [fuzz]	39m 58s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [expressions]	17m 58s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [csv]	9m 9s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [csv]	11m 4s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [exec]	27m 19s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [exec]	23m 1s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [parquet]	26m 13s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [sql]	11m 24s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [fuzz]	26m 42s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [sql]	10m 39s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [parquet]	17m 51s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [exec]	23m 18s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [csv]	10m 29s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [shuffle]	25m 22s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [parquet]	26m 21s
macos-14/Spark 4.0, JDK 17, Scala 2.13 [expressions]	26m 19s
	8h 34m 41s

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