Add syntax highlighting for Python pattern matching

Add syntax highlighting for `match` and `case` keywords in Python
(https://peps.python.org/pep-0636/).

runtime/queries/python/highlights.scm

@@ -2,7 +2,7 @@
 
 (dotted_name
   (identifier)* @namespace)
-  
+
 (aliased_import
   alias: (identifier) @namespace)
 
@@ -67,7 +67,7 @@
 (parameters
   (dictionary_splat_pattern ; **kwargs
     (identifier) @variable.parameter))
-    
+
 (lambda_parameters
   (identifier) @variable.parameter)
 
@@ -97,7 +97,7 @@
  (#match? @constant "^[A-Z_]{2,}$"))
 
 ((identifier) @type
- (#match? @type "^[A-Z]")) 
+ (#match? @type "^[A-Z]"))
 
 (attribute attribute: (identifier) @variable.other.member)
 (identifier) @variable
@@ -168,6 +168,8 @@
   "if"
   "elif"
   "else"
+  "match"
+  "case"
 ] @keyword.control.conditional
 
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