chore(deps): update dependency @google-cloud/datastore to v9

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@google-cloud/datastore	^8.0.0 -> ^9.0.0

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Release Notes

googleapis/nodejs-datastore (@​google-cloud/datastore)

v9.2.0

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Features

• Add FindNearest API to the stable branch (#​1333) (1d56433)
• Update Go Datastore import path (#​1261) (bf3dafd)

Bug Fixes

• Add excludeFromIndexes in the proper places for large properties of nested fields (#​1266) (9c7730a)
• Query object description (#​1340) (ad2c6c0)

v9.1.0

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Features

• New transaction feature (#​1239) (cdd2ee9)

Bug Fixes

• deps: Update dependency sinon to v18 (#​1250) (b7ff5c8)

v9.0.0

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⚠ BREAKING CHANGES

• An existing method UpdateVehicleLocation is removed from service VehicleService (#​1248)

Features

• Query profiling feature (#​1221) (414dec4)

Bug Fixes

• An existing method UpdateVehicleLocation is removed from service VehicleService (#​1248) (ba79118)
• Read time should be used for transaction reads (#​1171) (73a0a39)

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