Tests

Add skipDuplicates() scope guard to createDocuments #3411

Job	Run time
Setup & Build Docker Image	27s
Unit Test	1m 6s
Adapter Tests (Postgres)	2m 52s
Adapter Tests (MySQL)	3m 44s
Adapter Tests (Pool)	3m 50s
Adapter Tests (MongoDB)	1m 40s
Adapter Tests (SQLite)	2m 34s
Adapter Tests (SharedTables/MariaDB)	3m 4s
Adapter Tests (SharedTables/MySQL)	3m 24s
Adapter Tests (SharedTables/Postgres)	3m 19s
Adapter Tests (MariaDB)	2m 55s
Adapter Tests (SharedTables/MongoDB)	1m 32s
Adapter Tests (Schemaless/MongoDB)	3m 0s
Adapter Tests (SharedTables/SQLite)	2m 35s
Adapter Tests (Mirror)	3m 26s
	39m 28s

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