[BUG][JavaSpring][SpringBoot] Missing example-Argument within @Parameter

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

I want to use example-Value in the .yaml-File.
I expect it will be generated at the interface-Method - but it is missing.

openapi-generator version

7.17.0

OpenAPI declaration file content or url

openapi: 3.0.0
info:
  title: Example
  version: 0.0.1
paths:
  /api/Example:
    get:
      responses:
        "200": 
          description: OK
      parameters: 
        - name: exampleStr
          schema:
            type: string
          example: _param_example_
          in: query

Generation Details

I use the org.openapitools.generator.gradle.plugin.tasks.GenerateTask within a gradle-Script with following settings:

generatorName = "spring"
library = "spring-boot"
configOptions = [
useJakarteEe: "true",
interfaceOnly: "true",
useSpringBoot3: "true"
]

Steps to reproduce

Just run the Task

Related issues/PRs

Suggest a fix

I think JavaSpring/paramDoc.mustache should use the example-Field.
I tried this out but has some trouble with datatypes which are auto-detected.
Using {{{example}}} causes an Compile-Error if it is not a String.
It works fine, if it is a String (because " is included)
If there is a Enum, it contains SomeType.fromValue("examplevalue")
I couldn't solve the enum-Problem.

Generated Code

    default ResponseEntity<Void> apiExampleGet(
        @Parameter(name = "exampleStr", description = "", in = ParameterIn.QUERY) @Valid @RequestParam(value = "exampleStr", required = false) @Nullable String exampleStr
    ) {
        return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);

    }

Expected Code

    default ResponseEntity<Void> apiExampleGet(
        @Parameter(name = "exampleStr", example = "_param_example_", description = "", in = ParameterIn.QUERY) @Valid @RequestParam(value = "exampleStr", required = false) @Nullable String exampleStr
    ) {
        return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);

    }

Start with the JavaSpring/paramDoc.mustache template and reproduce the issue using the provided OpenAPI YAML and Gradle GenerateTask settings. Check how string, non-string, and enum parameter examples are represented, then verify that generated @Parameter annotations include the example without causing Java compilation errors.