Adding Support for Redis TLS connection

[sarve-shreyas]

• Added one env flag REDIS_TLS which is bool if it is set to be true then we pass tls as empty object otherwise we set it as null

config.service.ts

 /**
     * Redis tls option
  */
 REDIS_TLS: bool({ default: false }),

bull.module.ts

return {
      name: client,
      host: configService.config.REDIS_HOST,
      ...
      enableReadyCheck: true,
      tls: configService.config.REDIS_TLS ? {} : null,
      reconnectOnError: () => true,
};

• Added README changes to add REDIS_TLS flag in env params

[m1abdullahh]

I really want this! @sarve-shreyas, do you happen to have this TLS-enabled version available on DockerHub? I’m hoping to avoid the hassle of building it myself and pushing it to DockerHub if it’s already available. Thanks in advance!