build(deps): bump assets/syntaxes/02_Extra/Slim

Bumps [assets/syntaxes/02_Extra/Slim](https://github.com/slim-template/ruby-slim.tmbundle) from `3b1441f` to `cad0268`.
- [Commits](3b1441f89f...cad02689b6)

---
updated-dependencies:
- dependency-name: assets/syntaxes/02_Extra/Slim
  dependency-version: cad02689b6c6e03d67dab8eaadb22cf0fd3b436b
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

CHANGELOG.md

@@ -64,7 +64,6 @@
 - Updated Catppuccin, see #3333 (@SchweGELBin)
 - Updated gruvbox, see #3372 (@Nicholas42)
 - Updated GitHub theme, see #3382 (@CosmicHorrorDev)
-- Updated ANSI theme to highlight JSON object keys differently from values, see #3413 (@keith-hall)
 
 ## `bat` as a library
 

assets/themes/ansi.tmTheme

@@ -234,7 +234,7 @@
                 <key>name</key>
                 <string>Headings</string>
                 <key>scope</key>
-                <string>markup.heading punctuation.definition.heading, entity.name.section, markup.heading - text.html.markdown, meta.mapping.key string.quoted.double</string>
+                <string>markup.heading punctuation.definition.heading, entity.name.section, markup.heading - text.html.markdown</string>
                 <key>settings</key>
                 <dict>
                     <key>fontStyle</key>