Reference: #12829
Reference: #16796
Output from acceptance testing in AWS Commercial:
```
--- PASS: TestAccAWSSubnet_availabilityZoneId (53.74s)
--- PASS: TestAccAWSSubnet_basic (52.50s)
--- PASS: TestAccAWSSubnet_defaultAndIgnoreTags (80.26s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_duplicateTag (6.45s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_nonOverlappingTag (84.84s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_overlappingTag (86.61s)
--- PASS: TestAccAWSSubnet_defaultTags_providerOnly (87.99s)
--- PASS: TestAccAWSSubnet_defaultTags_updateToProviderOnly (69.48s)
--- PASS: TestAccAWSSubnet_defaultTags_updateToResourceOnly (72.12s)
--- PASS: TestAccAWSSubnet_disappears (41.08s)
--- PASS: TestAccAWSSubnet_enableIpv6 (109.36s)
--- PASS: TestAccAWSSubnet_ignoreTags (81.13s)
--- PASS: TestAccAWSSubnet_ipv6 (118.69s)
--- PASS: TestAccAWSSubnet_MapPublicIpOnLaunch (118.55s)
--- PASS: TestAccAWSSubnet_tags (106.25s)
--- SKIP: TestAccAWSSubnet_CustomerOwnedIpv4Pool (1.44s)
--- SKIP: TestAccAWSSubnet_MapCustomerOwnedIpOnLaunch (1.40s)
--- SKIP: TestAccAWSSubnet_outpost (1.70s)
```
Output from acceptance testing in AWS GovCloud (US):
```
--- PASS: TestAccAWSSubnet_availabilityZoneId (55.41s)
--- PASS: TestAccAWSSubnet_basic (55.46s)
--- PASS: TestAccAWSSubnet_defaultAndIgnoreTags (85.95s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_duplicateTag (6.64s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_nonOverlappingTag (82.23s)
--- PASS: TestAccAWSSubnet_defaultTags_providerAndResource_overlappingTag (84.95s)
--- PASS: TestAccAWSSubnet_defaultTags_providerOnly (86.26s)
--- PASS: TestAccAWSSubnet_defaultTags_updateToProviderOnly (69.05s)
--- PASS: TestAccAWSSubnet_defaultTags_updateToResourceOnly (73.74s)
--- PASS: TestAccAWSSubnet_disappears (42.78s)
--- PASS: TestAccAWSSubnet_enableIpv6 (117.40s)
--- PASS: TestAccAWSSubnet_ignoreTags (83.74s)
--- PASS: TestAccAWSSubnet_ipv6 (126.25s)
--- PASS: TestAccAWSSubnet_MapPublicIpOnLaunch (124.27s)
--- PASS: TestAccAWSSubnet_tags (115.31s)
--- SKIP: TestAccAWSSubnet_CustomerOwnedIpv4Pool (6.95s)
--- SKIP: TestAccAWSSubnet_MapCustomerOwnedIpOnLaunch (2.60s)
--- SKIP: TestAccAWSSubnet_outpost (2.14s)
```