[BUG][Rust] format! syntax error for path parameters with dashes in them

Description

The Rust generator generates syntax errors when URI templates have parameter names with - dashes in them.

openapi-generator version

0e05cf2

OpenAPI declaration file content or url

openapi: '3.0.0'
info:
  version: 1.0.0
  title: test
paths:
  /test/{uwu-owo}:
    get:
      summary: sample
      parameters:
      - name: uwu-owo
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  hello:
                    type: string

Generation Details

java -jar /home/val/.m2/repository/org/openapitools/openapi-generator-cli/7.6.0-SNAPSHOT/openapi-generator-cli-7.6.0-SNAPSHOT.jar generate -i dash.yaml -o rsbug/ -g rust

Steps to reproduce

generate the above, try to build, get syntax error:

error: invalid format string: expected `'}'`, found `'-'`
  --> src/apis/default_api.rs:31:50
   |
31 |     let local_var_uri_str = format!("{}/test/{uwu-owo}", local_var_configuration.base_path, uwu-owo=crate::api...
   |                                              -   ^ expected `'}'` in format string
   |                                              |
   |                                              because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

Related issues/PRs

🤷‍♀️

Suggest a fix

Add dash replacement for format! key names

Start by running the documented Java generator command with the provided dash.yaml and inspect the generated src/apis/default_api.rs. Compare the generated format! call with the reported Rust compiler error and trace it back to the Rust generator templates or code that handles path parameter names. Done means the same specification generates Rust code that builds successfully.