[BUG][typescript-node] components.securitySchemes props keys are used with dot instead of bracket notation

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• 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

When a property of components.securitySchemes is a string which has special characters, the typescript-node generator produces some invalid code (look at the access-token property):

    set accessToken(accessToken: string | (() => string)) {
        this.authentications.access-token.accessToken = accessToken;
    }

It should have been something like:

    set accessToken(accessToken: string | (() => string)) {
        this.authentications["access-token"].accessToken = accessToken;
    }

openapi-generator version

6.1.0

OpenAPI declaration file content or url

openapi: 3.0.3
info:
  title: Title
  version: "1"
paths:
  /test:
    get:
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                type: string
      security:
        - access-token: []
components:
  securitySchemes:
    access-token:
      scheme: bearer
      bearerFormat: JWT
      type: http

Generation Details

I've only used the typescript-node generator with no special configuration.

Steps to reproduce

Copy the schema in a new file (/local/modules/openapi-generator/src/test/resources/bugs/issue_XXXXX.yaml in my example), then run:

docker run --rm \
    -v $PWD:/local openapitools/openapi-generator-cli generate \
    -i /local/modules/openapi-generator/src/test/resources/bugs/issue_XXXXX.yaml \
    -g typescript-node \
    -o /local/out/typescript-node

Related issues/PRs

Nothing found yet

Suggest a fix

I've made a quickfix here: https://github.com/bbenoist/openapi-generator/commit/6a0eb8b0772fb3dfe45c42c365036120479e90be

Reproduce the issue with the OpenAPI YAML example using the typescript-node generator and inspect the generated authentication access. The regression fixture can live under modules/openapi-generator/src/test/resources/bugs/; done means generated access for names such as access-token uses bracket notation and produces valid TypeScript.