Add collation support for sharded $lookup.

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    • Fully Compatible
    • Query Optimization 2021-07-12, Query Optimization 2021-07-26
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      As part of SERVER-32308, the current tests for $lookup and collation were extended to run against sharded collections. The testing found that the $lookup aggregate was missing results when the foreign collection became sharded.

              Assignee:
              Alya Berciu
              Reporter:
              Nicholas Zolnierz
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