Add urgency to graphql_known_operations

• Part 1 - Add evaluateModuleFromSource for graphql_known_operations_plugin
• Part 2 - Add urgency to graphql_known_operations

What does this MR do and why?

This MR adds urgency handling for parsing our known graphql queries. This urgency is carried through to when we measure the apdex of query performance.

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How to set up and validate locally

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MR acceptance checklist

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Related to #349546 (closed)