Log Message:
gtksourceview4: updated to 4.8.4

News in 4.8.4, 2022-11-03
-------------------------
* Style updates to kate, classic, tango
* Language updates to vala, python3, c, cuda, latex
* Add unit tests for language specs
* Translation updates

News in 4.8.3, 2022-03-18
-------------------------

* Adds support for more Pango font-variants
* Style updates to solarized-dark, solarized-light
* Language updates to lean, rst, c, gtk-doc, javascript, and json
* Translation updates

News in 4.8.2, 2021-09-03
-------------------------
* New syntax highlighting definition file for: STAR
* Improved syntax highlighting definition file for: YARA, LLVM
* GtkSourceMap now avoids animation while scrolling in response
  to clicks. This should help prevent some hysteresis.
* GObject Introspection fixes
* Fixed decrement of negative numbers in GtkSourceView
* Improvements to style schemes: kate
* Fixed build-time macros for version checking in some scenarios
* Translation updates

News in 4.8.1, 2021-03-02
-------------------------
* Fix highlighting in presence of byte-order-marks (BOM)
* meson.lang: Update keywords to 0.55.3 syntax
* cmake.lang: Update keywords to 3.18.2 syntax
* go.lang: make "0i" syntax highlight as integer
* Translation updates