Log Message:
poke: update to 3.3.

Version 3.3 (20 August 2023)
* Bug fixes

  - Mapping in non-strict mode now assures that constraint expressions
    are executed, even if their result is discarded.  This is
    important because very often constraint expressions have side
    effects (such as setting the current endianness) on which further
    mapping relies.

  - Bug in array promotion has been fixed.

  - A bug impacting array bounders in struct constructors has been
    fixed.

  - The return type of the builtin `iolist' has been fixed.

  - A bug impacting the re-definition of struct types at the top-level
    has been fixed.

  - Error locations were not very xprecise in a couple of circumstances
    due to a bison limitation.  This should be fixed now.

  - Setting values of mapped structs in strict mode now really check
    for integrity, erroing whenever necessary.

  - A bug flushing stream IO devices has been fixed.

  - The .sub dot-command now does the right thing when no name is
    specified, instead of crashing poke.

* Pickles

  - The BTF pickle has been updated to support BTF_KIND_ENUM64.