[BUG] [SPRING-CLOUD] Multiple Security breaks the generated code

If you use multiple security schemes, the spring cloud generator code generator breaks and produces non-compilable code.

  securitySchemes:
    oauth:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: '/auth'
          tokenUrl: '/token'
          scopes: { }
        clientCredentials:
          tokenUrl: '/token'
          scopes: { }
    basicAuth:
      type: http
      scheme: basic

I was able to fix that so far and I would still include it in the PR.
https://github.com/OpenAPITools/openapi-generator/pull/16011

Start by reviewing the Spring Cloud generator behavior with the provided OpenAPI securitySchemes example and compare the proposed fix in pull request #16011. Generate code using multiple security schemes and verify that the resulting code compiles without the reported breakage.