Update to 1.013.1

Upstream changes:
1.013.1  2022-08-12  Hatuka*nezumi - IKEDA Soji  <hatuka(at)nezumi.nu>

    * No new features.
    * Update META.json.

1.013  2022-08-09  Hatuka*nezumi - IKEDA Soji  <hatuka(at)nezumi.nu>

    * Update tests.
    * A typo in comment: "3.18" should be "3.19".
    * Fix: Escape sequences won't be used with DIN 66003.

1.013_01  2022-08-08  Hatuka*nezumi - IKEDA Soji  <hatuka(at)nezumi.nu>

    * Imp: Added support for DIN 66003.
    * Chg: Workaround: "ISO-8859-8-I" is treated as an alias of "ISO-8859-8"
      by Encode (3.18): See the note in
      https://encoding.spec.whatwg.org/#legacy-single-byte-encodings
      However we'll treat these as separate names for compatibility.

(wen)