Added first custom injection for highlighting sql in sqlx query macro

nvim/dot-config/nvim/queries/rust/injections.scm

@@ -0,0 +1,13 @@
+; extends
+(macro_invocation
+  (scoped_identifier
+	path: (identifier) @path (#eq? @path "sqlx")
+	name: (identifier) @name (#eq? @name "query")
+	)
+  (token_tree
+	(raw_string_literal
+      (string_content) @injection.content
+	  (#set! injection.language "sql")
+	)
+  )
+)