python3-markdown: upgrade 3.8 -> 3.8.2

python3-markdown: upgrade 3.8 -> 3.8.2

Changelog:
============
- Fix codecs deprecation in Python 3.14.
- Fix issue with unclosed comment parsing in Python 3.14.
- Fix issue with unclosed declarations in Python 3.14.
- Fix issue with unclosed HTML tag < foo and Python 3.14.
- Ensure incomplete markup declaration in raw HTML doesn't crash parser (#1534).
- Fixed dropped content in md_in_html (#1526).
- Fixed HTML handling corner case that prevented some content from not being rendered

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>