chore: update github actions major version numbers

[frytg]

Why:

While looking something up about the actions/cache usage I noticed some outdated major version, which would copy an old version from the example code (see https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/caching-dependencies-to-speed-up-workflows#input-parameters-for-the-cache-action). 3 other actions packages seem to outdated too.

What's being changed:

actions/cache is now v4
There are no noteworthy breaking changes in the syntax as per https://github.com/actions/cache/releases

actions/github-script is now v7
also no critical changes https://github.com/actions/github-script/releases

actions/setup-dotnet is now v4
https://github.com/actions/setup-dotnet/releases has no major changes, but helpful due to edgio migrations

actions/stale is now v9
while this seems like a major change from v5, it seems to be mostly behind the scenes and all yaml examples ([1], [2]) are still valid https://github.com/actions/stale/releases

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require a SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing.

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[github-actions]

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Content directory changes

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Source	Preview	Production	What Changed
actions/migrating-to-github-actions/manually-migrating-to-github-actions/migrating-from-circleci-to-github-actions.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/migrating-to-github-actions/manually-migrating-to-github-actions/migrating-from-gitlab-cicd-to-github-actions.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/migrating-to-github-actions/manually-migrating-to-github-actions/migrating-from-travis-ci-to-github-actions.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/building-and-testing/building-and-testing-powershell.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/building-and-testing/building-and-testing-ruby.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/deploying/deploying-net-to-azure-app-service.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/deploying/deploying-php-to-azure-app-service.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/deploying/deploying-python-to-azure-app-service.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/writing-workflows/about-workflows.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/writing-workflows/choosing-what-your-workflow-does/caching-dependencies-to-speed-up-workflows.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/security-for-github-actions/security-hardening-your-deployments/configuring-openid-connect-in-cloud-providers.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/security-for-github-actions/security-hardening-your-deployments/configuring-openid-connect-in-jfrog.md	fpt ghec	fpt ghec	from reusable
actions/use-cases-and-examples/project-management/removing-a-label-when-a-card-is-added-to-a-project-board-column.md	ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/building-and-testing/building-and-testing-net.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/building-and-testing/building-and-testing-xamarin-applications.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable
actions/use-cases-and-examples/project-management/closing-inactive-issues.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	from reusable

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server