[BUG] [Rust Server] Not support operationId blank separator issue.

Created by: paladinzh

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• What's the version of OpenAPI Generator used?
• Have you search for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Bounty to sponsor the fix (example)

Description

Not support operationId-blank separator issue.

openapi-generator version

OpenAPI declaration file content or url

modules/openapi-generator/src/test/resources/3_0/rust-server/openapi-v3.yaml get: tags: [Repo, Info] operationId: Get Repo\Info

Command line used for generation

bin/rust-server-petstore.sh

Steps to reproduce

Run the generated code openapi-v3/

Related issues/PRs

No

Suggest a fix

1. Add replace(" ", "") after camelize(operationId) to eliminate blank.