THRIFT-5832 Drop net6 support and add net9 instead
Client: netstd
Patch: Jens Geyer
diff --git a/lib/netstd/Thrift/Protocol/TJSONProtocol.cs b/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
index 64308d6..02cf3ed 100644
--- a/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
+++ b/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
@@ -29,6 +29,8 @@
#pragma warning disable IDE0079 // net20 - unneeded suppression
#pragma warning disable IDE0290 // net8 - primary CTOR
+#pragma warning disable IDE0305 // net9 - collection init
+#pragma warning disable IDE0300 // net9 - collection init
namespace Thrift.Protocol
{