resource/aws_qldb_ledger: Remove deprecated (helper/schema.ResourceData).Partial() and (helper/schema.ResourceData).SetPartial() (#12474)
resource/aws_qldb_ledger: Remove deprecated (helper/schema.ResourceData).Partial() and (helper/schema.ResourceData).SetPartial() (#12474)

Reference: https://github.com/terraform-providers/terraform-provider-aws/issues/12083
Reference: https://github.com/terraform-providers/terraform-provider-aws/issues/12087

Previously:

```
aws/resource_aws_qldb_ledger.go:159:2: R007: deprecated (schema.ResourceData).Partial
aws/resource_aws_qldb_ledger.go:175:3: R008: deprecated (schema.ResourceData).SetPartial
aws/resource_aws_qldb_ledger.go:185:2: R007: deprecated (schema.ResourceData).Partial
```

Output from acceptance testing:

```
--- PASS: TestAccAWSQLDBLedger_basic (47.45s)
--- PASS: TestAccAWSQLDBLedger_Tags (69.25s)
```
kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws