add test for void html tag

crates/djls-ast/src/parser.rs

@@ -557,6 +557,15 @@ mod tests {
         insta::assert_yaml_snapshot!(ast);
     }
 
+    #[test]
+    fn test_parse_html_void() {
+        let source = r#"<img src="example.png" />"#;
+        let tokens = Lexer::new(source).tokenize().unwrap();
+        let mut parser = Parser::new(tokens);
+        let ast = parser.parse().unwrap();
+        insta::assert_yaml_snapshot!(ast);
+    }
+
     #[test]
     fn test_parse_script() {
         let source = r#"<script type="text/javascript">

crates/djls-ast/src/snapshots/djls_ast__parser__tests__parse_html_void.snap

@@ -0,0 +1,11 @@
+---
+source: crates/djls-ast/src/parser.rs
+expression: ast
+---
+nodes:
+  - Html:
+      Void:
+        tag_name: img
+        attributes:
+          src:
+            Value: example.png