build(deps): bump cloud.google.com/go/datastore from 1.1.0 to 1.2.0

[dependabot]

Bumps cloud.google.com/go/datastore from 1.1.0 to 1.2.0.

Release notes

Sourced from cloud.google.com/go/datastore's releases.

bigquery/v1.2.0

• Adds support for scripting feature, which includes script statistics and the ability to list jobs run as part of a script query.

• Updates default endpoint for BigQuery from www.googleapis.com to bigquery.googleapis.com.

storage/v1.2.0

• Add support for UniformBucketLevelAccess. This configures access checks to use only bucket-level IAM policies. See: https://godoc.org/cloud.google.com/go/storage#UniformBucketLevelAccess.
• Fix userAgent to use correct version.

bigtable/v1.2.0

• Update cbt usage string.

• Fix typo in cbt tool.

• Ignore empty lines in cbtrc.

• Emulator now rejects microseconds precision.

spanner/v1.2.0

• Support tracking stacktrace of sessionPool.take() that allows the user to instruct the session pool to keep track of the stacktrace of each goroutine that checks out a session from the pool. This is disabled by default, but it can be enabled by setting SessionPoolConfig.TrackSessionHandles: true.
• Add resource-based routing that includes a step to retrieve the instance-specific endpoint before creating the session client when creating a new spanner client. This is disabled by default, but it can be enabled by setting GOOGLE_CLOUD_SPANNER_ENABLE_RESOURCE_BASED_ROUTING.
• Make logger configurable so that the Spanner client can now be configured to use a specific logger instead of the standard logger.
• Support encoding custom types that point back to supported basic types.
• Allow decoding Spanner values to custom types that point back to supported types.

pubsub/v1.2.0

• Add support for upcoming dead letter topics feature
• Expose Subscription.ReceiveSettings.MaxExtensionPeriod setting
• Standardize default settings with other client libraries
  • Increase publish delay threshold from 1ms to 10ms
  • Increase subscription MaxExtension from 10m to 60m
• Always send keepalive/heartbeat ping on StreamingPull streams to minimize stream reopen requests

firestore/v1.2.0

• Deprecate v1beta1 client.
• Fix serverTimestamp docs.

... (truncated)

Commits

• bd0b380 pubsub: release v1.2.0
• 0f9dd32 pubsub: skip TestEndToEnd_Dupes
• 272a39d all: auto-regenerate gapics
• bb68fe5 internal/gapicgen: simplify genbot, add more logging
• 790001b all: auto-regenerate gapics
• 62ed622 pubsub: make DeliveryAttempt field nil when dead lettering is disabled.
• 115cfad datastore: fix example comment
• 1eb0d52 storage: fix TestIndefiniteRetries flaky
• ae96aa2 vision: v1p1beta1 migrate to microgen
• 4466dc1 monitoring: migrate to microgen
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)