Make assembly version logic more robust Fixes #44042 (#45518)

Fixes #44042

Replaces the way we look for assembly version.

Author: Forgind

src/Tasks/Microsoft.NET.Build.Tasks/DependencyContextBuilder.cs

@@ -537,12 +537,10 @@ private RuntimeLibrary GetRuntimeLibrary(DependencyLibrary library, string[] use
             {
                 var fileName = Path.GetFileNameWithoutExtension(library.Path);
                 var assemblyPath = userRuntimeAssemblies?.FirstOrDefault(p => Path.GetFileNameWithoutExtension(p).Equals(fileName));
-                runtimeAssemblyGroups.Add(new RuntimeAssetGroup(string.Empty,
-                    [ new RuntimeFile(
-                        referenceProjectInfo.OutputName,
-                        library.Version.ToString(),
-                        assemblyPath is null || !File.Exists(assemblyPath) ? string.Empty : FileVersionInfo.GetVersionInfo(assemblyPath).FileVersion)
-                    ]));
+                var runtimeFile = !string.IsNullOrWhiteSpace(assemblyPath) && File.Exists(assemblyPath) ? CreateRuntimeFile(referenceProjectInfo.OutputName, assemblyPath) :
+                                  !string.IsNullOrWhiteSpace(library.Path) && File.Exists(library.Path) ? CreateRuntimeFile(referenceProjectInfo.OutputName, library.Path) :
+                                  new RuntimeFile(referenceProjectInfo.OutputName, string.Empty, string.Empty);
+                runtimeAssemblyGroups.Add(new RuntimeAssetGroup(string.Empty, [runtimeFile]));
 
                 resourceAssemblies.AddRange(referenceProjectInfo.ResourceAssemblies
                                 .Select(r => new ResourceAssembly(r.RelativePath, r.Culture)));