* update secrets

* 1

* 2

* tests: update default runtime used for tests

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* also disable 3.7/3.8 samples tests

* revert

* specify sessions for Kokoro job

* update secrets

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Harkamal Jot Singh Kumar <[email protected]>

…on. (#1778)

* feat: adds trust boundary lookup support for SA and impersonated credentials

* Add feature flag, fix ud bug, and update no-op response.

* Add _build_trust_boundary_lookup_url to external account.

* Implement additional unit tests for the trust boundary

* implement trust boundary in compute_engine to support GCE instances.

* Fix failing unit test, and change acceptable values for the env variable

* Add unit tests for gce trust boundary.

* Use no op method instead of directly comparing values

* fix a typo in calling the method noop

* Add x-allowed-location header to all IAM requests.

* Support self-signed jwt and refactor refresh to handle refreshing trust boundary in the base class.

* Fix failing unit tests

* Revert changes to external account class file.

* Additional unit tests and update some old ones.

* Revert changes to idtoken

* Revert the self signed jwt token workaround

* revert idtoken and jwt trust boundary tests.

* Fix failing github check

* Fix failing unit tests in compute engine

* fix linter issues

* Fix linter issues

* remove trust boundary related code from idtoken as it is not a supported credential type

* remove unused line in test

* docs: update README to include x509 feature.

* Fix hyperlink

* fix: fix type error in credentials.py for python 3.7 and 3.8

* fix linting error

* chore: update owners

* remove yoshi

… types (#1812)

* fix: Deprecating generic load methods and adding warnings on few cred types

* update secret

* extra line

* remove being

* method to class

* secret update

* secret update

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

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

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>