Always install .NET before running perf automation - May not be pre-installed on ubuntu-24 (#46119)

Co-authored-by: Mike Harder <mharder@microsoft.com>

Author: azure-sdk

eng/common/pipelines/templates/jobs/perf.yml

@@ -113,6 +113,8 @@ jobs:
     parameters:
       AgentImage: $(OSVmImage)
 
+  - template: /eng/pipelines/templates/steps/install-dotnet.yml
+
   - ${{ parameters.InstallLanguageSteps }}
 
   - template: /eng/common/TestResources/deploy-test-resources.yml