Tests

Add skipDuplicates() scope guard to createDocuments #3392

Job	Run time
Setup & Build Docker Image	23s
Unit Test	1m 8s
Adapter Tests (MySQL)	3m 36s
Adapter Tests (MongoDB)	1m 25s
Adapter Tests (Postgres)	2m 51s
Adapter Tests (MariaDB)	2m 43s
Adapter Tests (SharedTables/Postgres)	2m 48s
Adapter Tests (Mirror)	3m 24s
Adapter Tests (SQLite)	2m 22s
Adapter Tests (SharedTables/MongoDB)	1m 34s
Adapter Tests (SharedTables/MySQL)	3m 44s
Adapter Tests (Schemaless/MongoDB)	3m 2s
Adapter Tests (SharedTables/MariaDB)	2m 54s
Adapter Tests (SharedTables/SQLite)	2m 29s
Adapter Tests (Pool)	3m 50s
	38m 13s

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