[release/8.0] Update Fedora docker image to Fedora 38

[github-actions]

Backport of #90776 to release/8.0

/cc @CarnaViire

Fedora 36 is EOL, replacing it with Fedora 38, which is supported and the only available Fedora image in Prereq repo.

Customer Impact

Running on Fedora 36 (which is EOL) causes failures of System.Net.Quic tests due to missing latest msquic package.

Testing

Verified that all tests (incl. System.Net.Quic tests) in CI on main are passing.

Risk

Test-only (CI-only) change

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Issue Details

---

Backport of #90776 to release/8.0

/cc @CarnaViire

Customer Impact

Testing

Risk

IMPORTANT: If this backport is for a servicing release, please verify that:

• The PR target branch is release/X.0-staging, not release/X.0.

• If the change touches code that ships in a NuGet package, you have added the necessary package authoring and gotten it explicitly reviewed.

Author:	github-actions[bot]
Assignees:	-
Labels:	area-Infrastructure-libraries
Milestone:	-

[karelz]

FYI @ericstj @jeffhandley - we are updating Fedora image to a supported version in 8.0.
cc @carlossanlop

[ghost]

Tagging subscribers to this area: @dotnet/runtime-infrastructure
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Backport of #90776 to release/8.0

/cc @CarnaViire

Fedora 36 is EOL, replacing it with Fedora 38, which is supported and the only available Fedora image in Prereq repo.

Customer Impact

Running on Fedora 36 (which is EOL) causes failures of System.Net.Quic tests due to missing latest msquic package.

Testing

Verified that all tests (incl. System.Net.Quic tests) in CI on main are passing.

Risk

Test-only (CI-only) change

Author:	github-actions[bot]
Assignees:	-
Labels:	area-Infrastructure-libraries, area-Infrastructure
Milestone:	-

[carlossanlop]

Thanks for the ping. I'll merge this when the CI is done and looks good.
PS: Please don't click on "Update branch" if the button shows up, or the CI will restart.

[CarnaViire]

Test failures are unrelated (known issues, not on Fedora)

[carlossanlop]

Failures are:

• Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBinderTests.GetCanReadStaticProperty failed #88843
• [8.0] [mono] Test process gets killed #90834