add sleep call to allow automatic refresh to occur

[VitusAcabado]

• Please check if the PR fulfills these requirements

• [ ] The commit message follows our guidelines

• [x] Tests for the changes have been added (for bug fixes/features)

• [ ] Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? This PR includes fixes that allow tests that require .refresh() to pass due to the recent silent blocking of the /refresh endpoint on cloud reverse proxy.

• What is the current behavior? (You can also link to an open issue here) some tests fail due to inconsistencies in the document count since we silently block the /refresh endpoint on cloud.

• What is the new behavior (if this is a feature change)? Adding some sleep calls allow the index to rely on the automatic refresh built in by marqo to update the documents on the index.

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?) No

• Other information: Screenshot of tests now passing on my local machine

[VitusAcabado]

commented to trigger cloud tests

thanks @danyilq

[VitusAcabado]

comment to trigger cloud tests