Re-add ICU as a valid remote

jmschonfeld · finagolfin · commit 176f9fee569d · 2024-09-20T23:25:42.000+05:30
diff --git a/utils/update_checkout/update-checkout-config.json b/utils/update_checkout/update-checkout-config.json
@@ -97,6 +97,9 @@
         "curl": {
           "remote": { "id": "curl/curl" }
         },
+        "icu": {
+          "remote": { "id": "unicode-org/icu" }
+        },
         "libxml2": {
           "remote": { "id": "gnome/libxml2" }
         },
