Fix signatures for cellpath access of records (#9793)

# Description
The same procedure as for #9778 repeated for records.

# User-Facing Changes
Commands that directly supported applying their work directly to record
fields via cell paths, that worked before #9680 will now work again

# Tests + Formatting
Tried to limit the need to add new `.allow_variants_without_examples()`
by adjusting or adding tests to also use some records with access.

crates/nu-command/src/conversions/into/binary.rs

@@ -36,6 +36,7 @@ impl Command for SubCommand {
                 (Type::Filesize, Type::Binary),
                 (Type::Date, Type::Binary),
                 (Type::Table(vec![]), Type::Table(vec![])),
+                (Type::Record(vec![]), Type::Record(vec![])),
             ])
             .allow_variants_without_examples(true) // TODO: supply exhaustive examples
             .rest(