openSUSE: 2021:0893-1 Critical: Htmldoc Memory Leak Detected

This update for htmldoc fixes the following issues:

htmldoc was updated to version 1.9.12

* Fixed buffer-overflow CVE-2021-20308 ( boo#1184424 )

* Fixed a crash bug with "data:" URIs and EPUB output

* Fixed several other crash bugs

* Fixed JPEG error handling

* Fixed some minor issues

* Removed the bundled libjpeg, libpng, and zlib.

update to 1.9.11:

- Added high-resolution desktop icons for Linux.

- Updated the internal HTTP library to fix truncation of redirection URLs

- Fixed a regression in the handling of character entities for UTF-8 input

- The `--numbered` option did not work when the table-of-contents was

disabled

- Updated local zlib to v1.2.11.

- Updated local libpng to v1.6.37.

- Fixed packaging issues on macOS and Windows

- Now ignore sRGB profile errors in PNG files

- The GUI would crash when saving

- Page comments are now allowed in `pre` text

update to 1.9.9:

- Added support for a...