fix: do not panic running remote cjs module (#26259)

Instead error.

cli/worker.rs

@@ -552,7 +552,8 @@ impl CliMainWorkerFactory {
           .await?;
         self.shared.cjs_resolution_store.is_known_cjs(&main_module)
       } else {
-        specifier_has_extension(&main_module, "cjs")
+        main_module.scheme() == "file"
+          && specifier_has_extension(&main_module, "cjs")
       };
       (main_module, is_cjs)
     };

tests/specs/run/remote_cjs_main/__test__.jsonc

@@ -0,0 +1,5 @@
+{
+  "args": "run http://localhost:4545/run/add.cjs",
+  "output": "output.out",
+  "exitCode": 1
+}

tests/specs/run/remote_cjs_main/output.out

@@ -0,0 +1,3 @@
+Download http://localhost:4545/run/add.cjs
+error: Expected a JavaScript or TypeScript module, but identified a Cjs module. Importing these types of modules is currently not supported.
+  Specifier: http://localhost:4545/run/add.cjs

tests/testdata/run/add.cjs

@@ -0,0 +1,3 @@
+module.exports.add = function (a, b) {
+  return a + b;
+};