feat: add gstreamer pipeline syntax (gstlaunch)

lua/nvim-treesitter/parsers.lua

@@ -707,6 +707,14 @@ list.graphql = {
   maintainers = { "@bkegley" },
 }
 
+list.gstlaunch = {
+  install_info = {
+    url = "https://github.com/theHamsta/tree-sitter-gstlaunch",
+    files = { "src/parser.c" },
+  },
+  maintainers = { "@theHamsta" },
+}
+
 list.hack = {
   install_info = {
     url = "https://github.com/slackhq/tree-sitter-hack",

queries/gstlaunch/highlights.scm

@@ -0,0 +1,32 @@
+[
+ "!"
+ "="
+] @operator
+
+[
+ ","
+ "."
+ ";"
+ "/"
+] @punctuation.delimiter
+
+[
+ "("
+ ")"
+] @punctuation.bracket
+
+(property
+  key: (identifier) @field)
+(value) @string
+(string_literal) @string
+(cap
+  .
+  (identifier) @string
+  .
+  (identifier) @string)
+(simple_element
+  type: (_) @type)
+(bin
+  type: (_) @type)
+
+(ERROR) @error