fix(css_parser): fix Parser is no longer progressing #3284 (#3433)

crates/biome_css_parser/src/syntax/at_rule/media.rs

@@ -82,10 +82,12 @@ fn parse_any_media_query(p: &mut CssParser) -> ParsedSyntax {
         parse_any_media_type_query(p)
     } else if is_at_grit_metavariable(p) {
         parse_grit_metavariable(p)
-    } else {
+    } else if is_at_any_media_condition(p) {
         let m = p.start();
         parse_any_media_condition(p).ok(); // TODO handle error
         Present(m.complete(p, CSS_MEDIA_CONDITION_QUERY))
+    } else {
+        Absent
     }
 }
 

crates/biome_css_parser/tests/css_test_suite/error/at_rule/at_rule_media_error.css

@@ -0,0 +1,19 @@
+@media (--umrel-breakpoints$-breakpoint) {}
+
+@media only screen and width <= 500px {
+	.left-block {
+		width: 100%;
+	}
+}
+
+@media only screen and (width 500px) {
+.left-block {
+	width: 100%;
+}
+}
+
+@media only screen and (width => 500px) {
+.left-block {
+	width: 100%;
+}
+}