Datastore create, retrieve and delete: many tests failed

[flaky-bot[bot]]

Many tests failed at the same time in this package.

• I will close this issue when there are no more failures in this package and there is at least one pass.
• No new issues will be filed for this package until this issue is closed.
• If there are already issues for individual test cases, I will close them when the corresponding test passes. You can close them earlier, if you prefer, and I won't reopen them while this issue is still open.

Here are the tests that failed:

• should excludeFromIndexes correctly (#1025)
• should remove index with using wildcard in excludeFromIndexes (#1047)
• should auto remove index with excludeLargeProperties enabled (#1026)
• should accurately save/get a large int value via Datastore.int() (#1048)
• should wrap specified properties via IntegerTypeCastOptions.properties (#1027)
• should save/get/delete multiple entities at once (#1123)
• should save and get with a string ID (#1028)
• should fail explicitly set second insert on save (#1029)
• should get multiple entities in a stream (#1049)
• should save keys as a part of entity and query by key (#1030)
• should save with an empty buffer

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commit: 9c7730a35699be049beeac0c4bb469239971d471 buildURL: Build Status, Sponge status: failed