* chore: install higher version of Python

* chore: update to python 3.15

* update lagging dependency

* fix vulnerability

* change the version

Source-Link: googleapis/synthtool@ca4c7ce
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:6062c519ce78ee08490e7ac7330eca80f00f139ef1a241c5c2b306550b60c728

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

* chore(deps): upgrade sinon to 21

* specify which timers to fake

* use @feywind's util for timers

* add crucial file

Source-Link: googleapis/synthtool@1218bc2
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:66c44f0ad8f6caaa4eb3fbe74f8c2b4de5a97c2b930cee069e712c447723ba95

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

* feat: Implement X509 Cert Based Authentication (#2036)

* chore(owlbot-nodejs): install 3.13.5 Python (#2042)

* chore: install higher version of Python

* chore: update to python 3.15

* update lagging dependency

* fix vulnerability

* change the version

Source-Link: googleapis/synthtool@ca4c7ce
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:6062c519ce78ee08490e7ac7330eca80f00f139ef1a241c5c2b306550b60c728

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

* chore(deps): upgrade sinon to 21 (#2050)

* chore(deps): upgrade sinon to 21

* specify which timers to fake

* use @feywind's util for timers

* add crucial file

* fix(deps): update dependency @googleapis/iam to v30 (#2052)

* chore: add node 24 in node ci test (#2051)

Source-Link: googleapis/synthtool@1218bc2
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:66c44f0ad8f6caaa4eb3fbe74f8c2b4de5a97c2b930cee069e712c447723ba95

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

* Included initial interfaces and options for creating x509client.

* Added implementation for x509provider

* Augmented logic for well-known cert config.

* Added changes to create CertificateSubjectTokenSupplier

* Added feature to call STS endpoint with the leaf certificate as trust chain.

* Added logic to use trust chains.

* Cleaned up certificateSubjectTokenSupplier and added mtlsClientTransporter logic to IdentityPoolClients Transporter

* Added tests for certificateConfig type externalClient

* All x509 auth logic in src/auth/certificatesubjecttokensupplier.ts

* Added tests for malformed cert_config file, malfor
med certificate in trust chain.

* Added unit tests for util

---------

Co-authored-by: gcf-owl-bot[bot] <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Leah E. Cole <[email protected]>
Co-authored-by: Mend Renovate <[email protected]>

* feat: Async X509 file Operations (#2054)

* chore(owlbot-nodejs): install 3.13.5 Python (#2042)

* chore: install higher version of Python

* chore: update to python 3.15

* update lagging dependency

* fix vulnerability

* change the version

Source-Link: googleapis/synthtool@ca4c7ce
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:6062c519ce78ee08490e7ac7330eca80f00f139ef1a241c5c2b306550b60c728

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

* chore: add node 24 in node ci test (#2051)

Source-Link: googleapis/synthtool@1218bc2
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:66c44f0ad8f6caaa4eb3fbe74f8c2b4de5a97c2b930cee069e712c447723ba95

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

* X509 Cert Auth now does only async file reads

* Fixed any linter error in util

---------

Co-authored-by: gcf-owl-bot[bot] <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Leah E. Cole <[email protected]>

* feat: x509 async Readme Update (#2056)


* Added readme changes.

* Addressed PR comments.

* 🦉 Updates from OwlBot post-processor

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

* Readme changes transferred from Readme.md to readme-partials.yaml for Yoshi bot compliance

* 🦉 Updates from OwlBot post-processor

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

---------

Co-authored-by: gcf-owl-bot[bot] <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Leah E. Cole <[email protected]>
Co-authored-by: Mend Renovate <[email protected]>

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