[RUST][CLIENT] Fix generated type not being converted to string (#17504)

Author: j-szulc

modules/openapi-generator/src/main/resources/rust/reqwest/api.mustache

@@ -96,7 +96,7 @@ pub {{#supportAsync}}async {{/supportAsync}}fn {{{operationId}}}(configuration:
 
     let local_var_client = &local_var_configuration.client;
 
-    let local_var_uri_str = format!("{}{{{path}}}", local_var_configuration.base_path{{#pathParams}}, {{{baseName}}}={{#isString}}crate::apis::urlencode({{/isString}}{{{paramName}}}{{^required}}.unwrap(){{/required}}{{#required}}{{#isNullable}}.unwrap(){{/isNullable}}{{/required}}{{#isArray}}.join(",").as_ref(){{/isArray}}{{#isString}}){{/isString}}{{/pathParams}});
+    let local_var_uri_str = format!("{}{{{path}}}", local_var_configuration.base_path{{#pathParams}}, {{{baseName}}}={{#isString}}crate::apis::urlencode({{/isString}}{{{paramName}}}{{^required}}.unwrap(){{/required}}{{#required}}{{#isNullable}}.unwrap(){{/isNullable}}{{/required}}{{#isArray}}.join(",").as_ref(){{/isArray}}{{^isString}}{{^isUuid}}{{^isPrimitiveType}}{{^isContainer}}.to_string(){{/isContainer}}{{/isPrimitiveType}}{{/isUuid}}{{/isString}}{{#isString}}){{/isString}}{{/pathParams}});
     let mut local_var_req_builder = local_var_client.request(reqwest::Method::{{{httpMethod}}}, local_var_uri_str.as_str());
 
     {{#queryParams}}