[Backport release/3.10] ogr2ogr: fix 'ogr2ogr out.parquet in.gpkg/fgb/parquet -t_srs {srs_def}' optimized code path (3.10.0 regression)

[Backport release/3.10] ogr2ogr: fix 'ogr2ogr out.parquet in.gpkg/fgb/parquet -t_srs {srs_def}' optimized code path (3.10.0 regression) #7160