Fix typo in EmitStreamSignKind (#36895)

src/Compilers/Core/Portable/Compilation.EmitStream.cs

@@ -23,7 +23,7 @@ internal enum EmitStreamSignKind
             /// This form of signing occurs in memory using the <see cref="PEBuilder"/> APIs. This is the default 
             /// form of signing and will be used when a strong name key is provided in a file on disk.
             /// </summary>
-            SignedWithBulider,
+            SignedWithBuilder,
 
             /// <summary>
             /// This form of signing occurs using the <see cref="IClrStrongName"/> COM APIs. This form of signing

src/Compilers/Core/Portable/Compilation/Compilation.cs

@@ -2727,7 +2727,7 @@ internal void EnsureAnonymousTypeTemplates(CancellationToken cancellationToken)
             try
             {
                 var signKind = IsRealSigned
-                    ? (SignUsingBuilder ? EmitStreamSignKind.SignedWithBulider : EmitStreamSignKind.SignedWithFile)
+                    ? (SignUsingBuilder ? EmitStreamSignKind.SignedWithBuilder : EmitStreamSignKind.SignedWithFile)
                     : EmitStreamSignKind.None;
                 emitPeStream = new EmitStream(peStreamProvider, signKind, Options.StrongNameProvider);
                 emitMetadataStream = metadataPEStreamProvider == null