Fix generate_constructor_placeholder_arguments (#3789)

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Closes #

## Introduced changes

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## Checklist

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- [ ] Linked relevant issue
- [ ] Updated relevant documentation
- [ ] Added relevant tests
- [ ] Performed self-review of the code
- [ ] Added changes to `CHANGELOG.md`

Author: franciszekjob

crates/sncast/src/response/declare.rs

@@ -224,7 +224,7 @@ fn generate_constructor_placeholder_arguments(constructor: AbiConstructor) -> St
                 .split("::")
                 .last()
                 .expect("Failed to get last part of input type");
-            format!("<{}: {})>", input.name, input_type)
+            format!("<{}: {}>", input.name, input_type)
         })
         .collect::<Vec<String>>()
         .join(", ")