Update mcr.microsoft.com/dotnet/sdk Docker tag to v9

Commit 64ff49bbbc pushed by renovate-bot#368

Workflow test.yml

lint

5s

test

9s

lint

Success

Set up job2s

actions/checkout@v41s

https://github.com/hadolint/hadolint-action@v3.1.00s

https://github.com/ludeeus/action-shellcheck@2.0.02s

Complete job0s