* fix: fix id_token iam endpoint for non-gdu service credentials

* chore: address comments

…request (#1464)

* fix: makes default token_url universe aware

* fix defaulting

Source-Link: googleapis/synthtool@db94845
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:a8a80fc6456e433df53fc2a0d72ca0345db0ddefb409f1b75b118dfd1babd952

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Source-Link: googleapis/synthtool@d50980e
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:5a4c19d17e597b92d786e569be101e636c9c2817731f80a5adec56b2aa8fe070

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

* chore: Add log when rapt token is acquired.

* chore: Add log when rapt token is acquired.

The ECP provider can work with the Python std lib SSL library.
This simplifies packaging, as cryptography can be omitted.

This patch makes the code use the standard SSL library if a provider
implementation is detected.

* feat: Enable webauthn handling when plugin is installed.

* Minor code cleanup.

* feat: Enable webauthn plugin for security keys

Move key press prompt and remove TODO question.

* feat: Enable webauthn plugin for security keys

Fix lint and mypy errors.

* feat: Enable webauthn plugin for security keys

Check dict accesses for None.
Remove commented out line.

* feat: Enable webauthn plugin for security keys

Change _urlsafe_b64recode to _unpadded_urlsafe_b64recode for clarity.

* feat: Enable webauthn plugin for security keys

Fix broken test and add test clauses to bring coverage to 100%.

---------

Co-authored-by: arithmetic1728 <58957152+arithmetic1728@users.noreply.github.com>

🤖 I have created a release *beep* *boop*
---


## [2.30.0](https://togithub.com/googleapis/google-auth-library-python/compare/v2.29.0...v2.30.0) (2024-06-06)


### Features

* Add WebAuthn plugin component to handle WebAuthn get assertion request ([#1464](https://togithub.com/googleapis/google-auth-library-python/issues/1464)) ([e25f336](https://togithub.com/googleapis/google-auth-library-python/commit/e25f336ab49c2018a222458a95ebe083e8a4eb2a))
* ECP Provider drop cryptography requirement ([#1524](https://togithub.com/googleapis/google-auth-library-python/issues/1524)) ([a821d71](https://togithub.com/googleapis/google-auth-library-python/commit/a821d719e2fc7bcdc21737fdf175d6f06aa9a56a))
* Enable webauthn plugin for security keys ([#1528](https://togithub.com/googleapis/google-auth-library-python/issues/1528)) ([e2d5e63](https://togithub.com/googleapis/google-auth-library-python/commit/e2d5e635da2cb2caf8240fb9e07fc381442a9d0c))


### Bug Fixes

* Fix id_token iam endpoint for non-gdu service credentials ([#1506](https://togithub.com/googleapis/google-auth-library-python/issues/1506)) ([93d681e](https://togithub.com/googleapis/google-auth-library-python/commit/93d681e6cfb15eb4a3efada623be8ba73b302257))
* Makes default token_url universe aware ([#1514](https://togithub.com/googleapis/google-auth-library-python/issues/1514)) ([045776e](https://togithub.com/googleapis/google-auth-library-python/commit/045776e5dfa3fb172ffaeb59bfe5c637778a5d34))

---
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