Fix the 2FA (OTP) provider integration with Cisco's duo_api
Related to https://gitlab.com/gitlab-org/gitlab/-/issues/537214
## Summary
I tried to setup Cisco's duo_api as as a 2FA provider with OTP but it does not work with GDK (master or any of the gem's versions)
See the docs: https://docs.gitlab.com/user/profile/account/two_factor_authentication/#enable-a-one-time-password-authenticator-using-cisco-duo
## Current Behaviour
* 2FA is immediately enforced
* All users are redirected to a 2FA page after successful authentication to setup OTP with the duo_api
* OTP code always fails if correct
## Expected Behaviour
* 2FA is immediately enforced
* All users are redirected to a 2FA page after successful authentication to setup OTP with the duo_api
* OTP code always passes if correct
## Discussion
I think they introduced a breaking change in v1.5.0 (only RubyGems.org, not their [github repo](https://github.com/duosecurity/duo_api_ruby)) that broke reverse compatibility with previous versions. The feature might be completely broken & would need a strategy refactor.
The following discussion from !192587 should be addressed:
- [ ] @project_278964_bot_079be3103ed333565a8fbea3be7252f4 started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/192587#note_2561199912): (+7 comments)
> <!-- allure -->
> # E2E Test Result Summary
> [`allure-report-publisher`](https://github.com/andrcuns/allure-report-publisher) generated test report!
>
> <!-- jobs -->
> <!-- e2e-test-on-cng -->
> **e2e-test-on-cng**: ✅ [test report](http://gitlab-qa-allure-reports.s3.amazonaws.com/e2e-test-on-cng/renovate-gems/duo_api/1868632847/index.html) for [e4b129fb](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/192587/diffs?commit_id=e4b129fbb2316e7f6bd6c9dd29635dd727f1734e)
> <details>
> <summary>expand test summary</summary>
>
> ```markdown
> +-------------------------------------------------------------------------------------+
> | suites summary |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | | passed | failed | skipped | flaky | total | result |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Plan | 85 | 0 | 9 | 0 | 94 | ✅ |
> | Package | 29 | 0 | 15 | 0 | 44 | ✅ |
> | Monitor | 8 | 0 | 12 | 0 | 20 | ✅ |
> | Security Risk Management | 26 | 0 | 8 | 0 | 34 | ✅ |
> | Tenant Scale | 29 | 0 | 12 | 0 | 41 | ✅ |
> | Verify | 50 | 0 | 23 | 0 | 73 | ✅ |
> | Create | 121 | 0 | 16 | 0 | 137 | ✅ |
> | Software Supply Chain Security | 49 | 0 | 11 | 0 | 60 | ✅ |
> | Growth | 0 | 0 | 2 | 0 | 2 | ➖ |
> | Deploy | 5 | 0 | 4 | 0 | 9 | ✅ |
> | Fulfillment | 2 | 0 | 7 | 0 | 9 | ✅ |
> | Manage | 1 | 0 | 9 | 0 | 10 | ✅ |
> | Ai-powered | 0 | 0 | 3 | 0 | 3 | ➖ |
> | Analytics | 0 | 0 | 2 | 0 | 2 | ➖ |
> | Secure | 3 | 0 | 2 | 0 | 5 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Total | 408 | 0 | 135 | 0 | 543 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> ```
> </details>
> <!-- e2e-test-on-cng -->
>
> <!-- e2e-test-on-gdk -->
> **e2e-test-on-gdk**: ✅ [test report](http://gitlab-qa-allure-reports.s3.amazonaws.com/e2e-test-on-gdk/renovate-gems-duo-api/1868665347/index.html) for [e4b129fb](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/192587/diffs?commit_id=e4b129fbb2316e7f6bd6c9dd29635dd727f1734e)
> <details>
> <summary>expand test summary</summary>
>
> ```markdown
> +-------------------------------------------------------------------------------------+
> | suites summary |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | | passed | failed | skipped | flaky | total | result |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Create | 117 | 0 | 16 | 0 | 133 | ✅ |
> | Verify | 49 | 0 | 24 | 0 | 73 | ✅ |
> | Package | 24 | 0 | 14 | 0 | 38 | ✅ |
> | Manage | 1 | 0 | 9 | 0 | 10 | ✅ |
> | Plan | 81 | 0 | 9 | 0 | 90 | ✅ |
> | Software Supply Chain Security | 47 | 0 | 11 | 0 | 58 | ✅ |
> | Security Risk Management | 26 | 0 | 8 | 0 | 34 | ✅ |
> | Tenant Scale | 29 | 0 | 12 | 0 | 41 | ✅ |
> | Monitor | 8 | 0 | 12 | 0 | 20 | ✅ |
> | Growth | 0 | 0 | 2 | 0 | 2 | ➖ |
> | Deploy | 5 | 0 | 4 | 0 | 9 | ✅ |
> | Secure | 3 | 0 | 2 | 0 | 5 | ✅ |
> | Analytics | 1 | 0 | 1 | 0 | 2 | ✅ |
> | Ai-powered | 0 | 0 | 3 | 0 | 3 | ➖ |
> | Fulfillment | 2 | 0 | 7 | 0 | 9 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Total | 393 | 0 | 134 | 0 | 527 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> ```
> </details>
> <!-- e2e-test-on-gdk -->
>
> <!-- e2e-test-on-omnibus -->
> **e2e-test-on-omnibus**: ✅ [test report](http://gitlab-qa-allure-reports.s3.amazonaws.com/e2e-test-on-omnibus/renovate-gems-duo-api/1868632864/index.html) for [e4b129fb](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/192587/diffs?commit_id=e4b129fbb2316e7f6bd6c9dd29635dd727f1734e)
> <details>
> <summary>expand test summary</summary>
>
> ```markdown
> +-------------------------------------------------------------------------------------+
> | suites summary |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | | passed | failed | skipped | flaky | total | result |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Software Supply Chain Security | 2 | 0 | 0 | 0 | 2 | ✅ |
> | Create | 4 | 0 | 0 | 0 | 4 | ✅ |
> | Plan | 4 | 0 | 0 | 0 | 4 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> | Total | 10 | 0 | 0 | 0 | 10 | ✅ |
> +--------------------------------+--------+--------+---------+-------+-------+--------+
> ```
> </details>
> <!-- e2e-test-on-omnibus -->
> <!-- jobs -->
> <!-- allurestop -->
issue
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