QUIC: support CipherSuitesPolicy

[wfurt]

This was originally tracked in #49574. Since microsoft/msquic#1430 is done, we should be able to implement it. QUIC only support three cipher suites and requires TLS 1.3. So unlike general SslStream where one may want to eliminate or selectively add weak cipher the value is low for QUIC.

The CipherSuitesPolicy is currently ignored if set. We could possibly throw PNSP to make it more obvious that it is not supported at the moment.

[ghost]

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Issue Details

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This was originally tracked in #49574. Since microsoft/msquic#1430 is done, we should be able to implement it. QUIC only support three cipher suites and requires TLS 1.3. So unlike general SslStream where one may want to eliminate or selectively add weak cipher the value is low for QUIC.

The CipherSuitesPolicy is currently ignored if set. We could possibly throw PNSP to make it more obvious that it is not supported at the moment.

Author:	wfurt
Assignees:	-
Labels:	area-System.Net.Quic
Milestone:	Future

[karelz]

Triage: We need to either throw or work correctly. No-op is not sufficient for 7.0 (current status).
Something sets it by default - either our tests, or HttpClient.
Work is small, so we should just do it.