chore(deps): update terraform google-beta to v6.16.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
google-beta (source)	required_provider	minor	6.15.0 -> 6.16.0

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Release Notes

hashicorp/terraform-provider-google-beta (google-beta)

v6.16.0

Compare Source

FEATURES:

• New Data Source: google_kms_autokey_config (#​8986)
• New Resource: google_beyondcorp_security_gateway (#​9017)
• New Resource: google_chronicle_data_access_label (#​8999)
• New Resource: google_chronicle_data_access_scope (#​9000)
• New Resource: google_cloud_quotas_quota_adjuster_settings (#​9005)

IMPROVEMENTS:

• chronicle: updated watchlist_id field to be optional in google_chronicle_watchlist resource (#​8988)
• developerconnect: added crypto_key_config, github_enterprise_config, gitlab_config , and gitlab_enterprise_config fields to google_developer_connect_connection resource (#​8998)
• dns: added health_check and external_endpoints fields to google_dns_record_set resource (#​9016)
• sql: added server_ca_pool field to google_sql_database_instance resource (#​9008)
• vmwareengine: allowed import of non-STANDARD private clouds in google_vmwareengine_private_cloud (#​9006)

BUG FIXES:

• dataproc: fixed boolean fields in shielded_instance_config in the google_dataproc_cluster resource (#​9003)
• gkeonprem: fixed permadiff on vcenter field in google_gkeonprem_vmware_cluster resource (#​9011)
• kms: fixed permadiff on google_kms_autokey_config by introducing a 5 second sleep post-create / post-update (#​8992)
• networkservices: fixed google_network_services_gateway resource so that it correctly waits for the router to be deleted on terraform destroy (#​8993)
• provider: fixed issue where GOOGLE_CLOUD_QUOTA_PROJECT env var would override explicit billing_project (#​9012)

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