ci: updates for Rust 1.76 (#1191)

Author: davidhewitt

src/errors/value_exception.rs

@@ -98,7 +98,7 @@ impl PydanticCustomError {
 
     fn __repr__(&self, py: Python) -> PyResult<String> {
         let msg = self.message(py)?;
-        match { self.context.as_ref() } {
+        match self.context.as_ref() {
             Some(ctx) => Ok(format!("{msg} [type={}, context={}]", self.error_type, ctx.as_ref(py))),
             None => Ok(format!("{msg} [type={}, context=None]", self.error_type)),
         }
@@ -173,7 +173,7 @@ impl PydanticKnownError {
 
     fn __repr__(&self, py: Python) -> PyResult<String> {
         let msg = self.message(py)?;
-        match { self.context(py)?.as_ref() } {
+        match self.context(py)?.as_ref() {
             Some(ctx) => Ok(format!(
                 "{msg} [type={}, context={}]",
                 self.error_type(),