Update license test

Author: smoelius

necessist/tests/ci.rs

@@ -134,9 +134,10 @@ fn hack_feature_powerset_udeps() {
 
 #[test]
 fn license() {
-    let re =
-        Regex::new(r"^[^:]*\b(Apache-2.0|0BSD|BSD-\d-Clause|CC0-1.0|MIT|MPL-2\.0|Unicode-3.0)\b")
-            .unwrap();
+    let re = Regex::new(
+        r"^[^:]*\b(Apache-2.0|0BSD|BSD-\d-Clause|CC0-1.0|MIT|MPL-2\.0|Unicode-3.0|Zlib)\b",
+    )
+    .unwrap();
 
     for line in std::str::from_utf8(
         &Command::new("cargo")