Update release instructions (#16701)

Author: alamb

dev/release/README.md

@@ -278,8 +278,8 @@ Verify that the Cargo.toml in the tarball contains the correct version
 (cd datafusion/optimizer && cargo publish)
 (cd datafusion/common-runtime && cargo publish)
 (cd datafusion/physical-plan && cargo publish)
-(cd datafusion/session && cargo publish)
 (cd datafusion/physical-optimizer && cargo publish)
+(cd datafusion/session && cargo publish)
 (cd datafusion/datasource && cargo publish)
 (cd datafusion/catalog && cargo publish)
 (cd datafusion/catalog-listing && cargo publish)