jgm/pandoc: pandoc 2.19.2

Click to expand changelog - Fix regression with data uris in 2.19.1 (#8239). In 2.19.1 we used the base64URL encoding rather than base64. - pandoc-server: handle `citeproc` parameter as documented (#8235). - Org reader: treat *emacs-jupyter* src blocks as code cells (#8236, Albert Krewinkel). This improves support for notebook-like org files that are intended to be used with emacs-jupyter package. - HTML writer and templates: revert to using `width` property for column widths (Albert Krewinkel). The default `flex` and `overflow-x` properties of a column are set to `auto`. In combination, these changes allow to get good results when using columns with or without explicit widths. - Org writer (Albert Krewinkel): - Add support for jupyter nodebook cells (#6367). - Prefix code language of ipynb code blocks with `jupyter-`. This is the convention used by the *emacs-jupyter* package. - Keep code block attributes as header args. This allows to keep more information in the resulting `src` blocks, making it easier to roundtrip from or through Org. Org babel ignores unknown header arguments. - Add code block identifier as `#+name` to src blocks. - Fix some typos in the codebase (luz paz). - Require hslua-module-path 1.0.3 (#8228, Albert Krewinkel)