test_provider: add tests for AbstractObjectStore.sync() (#557) #1241

Job	Run time
sdk-static-analysis	24s
sdk-test (3.10)	32s
repository-check-copyright	17s
sdk-test (3.12)	34s
sdk-package	13s
compliance-tool-static-analysis	25s
check-python-versions	9s
server-static-analysis	28s
server-repository-docker	54s
sdk-readme-codeblocks	25s
compliance-tool-package	14s
sdk-docs	22s
	4m 57s

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