KCL: Chamfer and fillet now use keyword arguments (#5389)

Previously:
`|> fillet({ radius = 5, tags = [seg01] }, %)`
Now:
`|> fillet(radius = 5, tags = [seg01])`

Also tweaks the formatter for keyword argument calls slightly.

src/lang/kclSamples.test.ts

@@ -32,7 +32,7 @@ child_process.spawnSync('git', [
   'clone',
   '--single-branch',
   '--branch',
-  'next',
+  'achalmers/kw-fillet-chamfer',
   URL_GIT_KCL_SAMPLES,
   DIR_KCL_SAMPLES,
 ])