fix(test): keep the C# eject e2e off inotify

The generated web app's default host builder watches appsettings.json with an inotify
instance, and the per-user limit is shared with every other process the user runs. When it
is spent the test dies in WebApplication.CreateBuilder with an IOException that has nothing
to do with the code under test. The polling file watcher needs no inotify instance.

Author: dmealing

server/csharp/MetaObjects.Cli.Tests/EjectEndToEndTests.cs

@@ -76,6 +76,12 @@ private static string RepoRoot()
         psi.Environment["MSBUILDDISABLENODEREUSE"] = "1";
         psi.Environment["DOTNET_CLI_USE_MSBUILD_SERVER"] = "0";
         psi.Environment["UseSharedCompilation"] = "false";
+        // The generated web app's default host builder watches appsettings.json with an inotify
+        // instance, and the per-user limit (128 by default) is shared with every other process the
+        // user runs, including other test lanes. When it is spent the app dies in
+        // WebApplication.CreateBuilder with an IOException (exit 134) that has nothing to do with
+        // the code under test; polling needs no inotify instance.
+        psi.Environment["DOTNET_USE_POLLING_FILE_WATCHER"] = "1";
         psi.ArgumentList.Add("run");
         psi.ArgumentList.Add("--project");
         psi.ArgumentList.Add(project);