fix: add <fieldset> attributes (#3581)

tachys/src/html/element/elements.rs

@@ -283,7 +283,7 @@ html_elements! {
     /// The `<em>` HTML element marks text that has stress emphasis. The `<em>` element can be nested, with each level of nesting indicating a greater degree of emphasis.
     em HtmlElement [] true,
     /// The `<fieldset>` HTML element is used to group several controls as well as labels (label) within a web form.
-    fieldset HtmlFieldSetElement [] true,
+    fieldset HtmlFieldSetElement [disabled, form, name] true,
     /// The `<figcaption>` HTML element represents a caption or legend describing the rest of the contents of its parent figure element.
     figcaption HtmlElement [] true,
     /// The `<figure>` HTML element represents self-contained content, potentially with an optional caption, which is specified using the figcaption element. The figure, its caption, and its contents are referenced as a single unit.