dotnet-build-server is missing nodejs

sonarscanner can use nodejs to perform additional CSS and HTML checks, but currently these are not working.

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INFO: Sensor CSS Rules [cssfamily]
ERROR: CSS rules were not executed. Error when running: 'node -v'. Is Node.js available during analysis?
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INFO: Sensor HTML [web]
ERROR: Error when running: 'node -v'. Is Node.js available during analysis?
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To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information