Upgrade to net9

src/coreclr/scripts/superpmi_aspnet.py

@@ -230,7 +230,7 @@ def remove_readonly(func, path, _):
             crank_arguments = ["--config", configFile,
                                "--profile", benchmark_machine,
                                "--scenario", scenario,
-                               "--application.framework", "net8.0",
+                               "--application.framework", "net9.0",
                                "--application.channel", "edge",
                                "--application.sdkVersion", "latest",
                                "--application.environmentVariables", "DOTNET_JitName=" + spminame,

src/coreclr/scripts/superpmi_benchmarks.py

@@ -203,7 +203,7 @@ def build_and_run(coreclr_args, output_mch_name):
 
     run_command(
         [dotnet_exe, "build", project_file, "--configuration", "Release",
-         "--framework", "net8.0", "--no-restore", "/p:NuGetPackageRoot=" + artifacts_packages_directory,
+         "--framework", "net9.0", "--no-restore", "/p:NuGetPackageRoot=" + artifacts_packages_directory,
          "-o", artifacts_directory], _exit_on_fail=True)
 
     # This is specifically for PowerShell.Benchmarks.

src/coreclr/scripts/superpmi_collect_setup.py

@@ -405,7 +405,7 @@ def setup_benchmark(workitem_directory, arch):
         # have not published yet. As a result, we hit errors of "dotnet restore". As a workaround, hard code the
         # working version until we move to ".NET 8" in the script.
         run_command(
-            get_python_name() + [dotnet_install_script, "install", "--channels", "8.0-preview", "--architecture", arch, "--install-dir",
+            get_python_name() + [dotnet_install_script, "install", "--channels", "9.0", "--architecture", arch, "--install-dir",
                                  dotnet_directory, "--verbose"])