Switch (Most) Acceptance Testing from resource.Test() to resource.ParallelTest()

[bflad]

Description

An upstream pull request (hashicorp/terraform#18688) has been merged that adds a wrapper function for helper/resource.Test() that calls t.Parallel() to enable Go's native testing parallelism (via the go test -parallelism flag). This will greatly help speed up local acceptance testing and CI testing outside TeamCity. It will be released upstream with Terraform 0.11.9.

• Update dependency: hashicorp/terraform@v0.11.9 (when released)
• Switch a subset of acceptance tests, e.g. TestAccAWSDBInstance and verify all is well locally and on TeamCity
• Update rest of the acceptance tests except those that must serialized, which includes:

• TestAccAWSCloudTrail
• TestAccAWSConfig
• TestAccAWSGuardDuty
• TestAccAWSIAMAccountAlias
• TestAccAWSOrganizations
• TestAccAWSSNSSMSPreferences
• TestAccAWSSpotDatafeedSubscription
• TestAccAWSWafRegexMatchSet
• TestAccAWSWafRegexPatternSet
• TestAccAWSWafRegionalRegexMatchSet
• TestAccAWSWafRegionalRegexPatternSet

[ghost]

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