[release/9.0-staging] disable multicast tests on AzureLinux (#119475)

Backport of #117694 to release/9.0-staging

/cc @jeffhandley @wfurt @ManickaP 

## Customer Impact

Related to #115502. Default AZL has firewall that blocks multicast. 

- [ ] Customer reported
- [x] Found internally

## Regression

- [ ] Yes
- [x] No

## Testing

This was verified in main and is also being backported to
release/8.0-staging via #115502, to ensure the test doesn't fail in our
baseline extra-platforms tests.

## Risk

Low. Conditional test disablement.

---------

Co-authored-by: wfurt <tweinfurt@yahoo.com>
Co-authored-by: Marie Píchová <11718369+ManickaP@users.noreply.github.com>

Author: 3 people

src/libraries/System.Net.Sockets/tests/FunctionalTests/SocketOptionNameTest.cs

@@ -15,6 +15,9 @@ namespace System.Net.Sockets.Tests
     public partial class SocketOptionNameTest
     {
         private static bool SocketsReuseUnicastPortSupport => Capability.SocketsReuseUnicastPortSupport().HasValue;
+        // Does not work on Nano and Qemu and AzureLinux has firewall enabled by default
+        private static readonly bool CanRunMulticastTests = !(PlatformDetection.IsWindowsNanoServer || PlatformDetection.IsWindowsServerCore ||
+                                                              PlatformDetection.IsAzureLinux || PlatformDetection.IsQemuLinux);
 
         [ConditionalFact(nameof(SocketsReuseUnicastPortSupport))]
         public void ReuseUnicastPort_CreateSocketGetOption()
@@ -65,8 +68,7 @@ public void MulticastOption_CreateSocketSetGetOption_GroupAndInterfaceIndex_SetS
             }
         }
 
-        [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsNanoNorServerCore))] // Skip on Nano: https://github.com/dotnet/runtime/issues/26286
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/104547", typeof(PlatformDetection), nameof(PlatformDetection.IsQemuLinux))]
+        [ConditionalFact(nameof(CanRunMulticastTests))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/113827", typeof(PlatformDetection), nameof(PlatformDetection.IsAppleMobile))]
         [SkipOnPlatform(TestPlatforms.OSX, "Multicast interface selection fails on macOS 14+ due to changes in how the system handles network interface parameters")]
         public async Task MulticastInterface_Set_AnyInterface_Succeeds()
@@ -124,10 +126,9 @@ public void MulticastInterface_Set_InvalidIndex_Throws()
             }
         }
 
-        [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsNanoNorServerCore))] // Skip on Nano: https://github.com/dotnet/runtime/issues/26286
+        [ConditionalFact(nameof(CanRunMulticastTests))]
         [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD, "Expected behavior is different on OSX or FreeBSD")]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/52124", TestPlatforms.iOS | TestPlatforms.tvOS | TestPlatforms.MacCatalyst)]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/104547", typeof(PlatformDetection), nameof(PlatformDetection.IsQemuLinux))]
         public async Task MulticastInterface_Set_IPv6_AnyInterface_Succeeds()
         {
             // On all platforms, index 0 means "any interface"