Try to fix Rider timeout issues in CI again (#3174)

Author: rli

jetbrains-rider/tst/base/AwsReuseSolutionTestBase.kt

@@ -15,6 +15,7 @@ import com.jetbrains.rider.test.scriptingApi.useCachedTemplates
 import org.testng.annotations.AfterClass
 import org.testng.annotations.BeforeClass
 import java.io.File
+import java.time.Duration
 
 /**
  * Base test class that uses the same solution per test class.
@@ -87,4 +88,6 @@ abstract class AwsReuseSolutionTestBase : BaseTestWithSolutionBase() {
 
         myProject = openSolution(solutionDirName, params)
     }
+
+    override val backendShellLoadTimeout: Duration = backendStartTimeout
 }

jetbrains-rider/tst/software/aws/toolkits/jetbrains/services/lambda/completion/DotNetHandlerCompletionTest.kt

@@ -19,8 +19,8 @@ import org.testng.annotations.Test
 import java.time.Duration
 
 class DotNetHandlerCompletionTest : BaseTestWithSolution() {
-    // FIX_WHEN_MIN_IS_212: backendShellLoadedTimeout is the one we actually need to override
     override val backendLoadedTimeout: Duration = backendStartTimeout
+    override val backendShellLoadTimeout: Duration = backendStartTimeout
 
     override fun getSolutionDirectoryName(): String = ""
 

jetbrains-rider/tst/software/aws/toolkits/jetbrains/services/lambda/dotnet/LambdaGutterMarkHighlightingTest.kt

@@ -29,8 +29,8 @@ class LambdaGutterMarkHighlightingTest : BaseTestWithMarkup() {
         setUpCustomToolset(msBuild, host)
     }
 
-    // FIX_WHEN_MIN_IS_212: backendShellLoadedTimeout is the one we actually need to override
     override val backendLoadedTimeout: Duration = backendStartTimeout
+    override val backendShellLoadTimeout: Duration = backendStartTimeout
 
     override fun getSolutionDirectoryName(): String = "SamHelloWorldApp"