fix(dws): fix some issues for cluster and logical cluster

[wuzhuanhong]

What this PR does / why we need it:

• huaweicloud_dws_cluster

  • Modify the version parameter document link.
  • Change the volume parameter from required to optional.

• huaweicloud_dws_logical_cluster

  • Fix the error 417 when creating logical clusters in parallel (Multiple logical clusters cannot be created at the same time for the same DWS cluster. The previous logical cluster must be successfully created before the next logical cluster can be created).
  • Fix the timeout error when deleting the last logical cluster(For versions after 820, the last logical cluster cannot be deleted. delete_enable and first_logical_cluster are both false).

• Remove the CheckDeleted logical of the data sources.

Which issue this PR fixes:
(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged)
fixes #xxx

Special notes for your reviewer:

Release note:

PR Checklist

• Tests added/passed.

$ make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccLogicalCluster_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccLogicalCluster_basic -timeout 360m -parallel 4
=== RUN   TestAccLogicalCluster_basic
=== PAUSE TestAccLogicalCluster_basic
=== CONT  TestAccLogicalCluster_basic
--- PASS: TestAccLogicalCluster_basic (1922.70s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       1922.785s

make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccResourceCluster_basicV2_mutilAZs'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccResourceCluster_basicV2_mutilAZs -timeout 360m -parallel 4
=== RUN   TestAccResourceCluster_basicV2_mutilAZs
=== PAUSE TestAccResourceCluster_basicV2_mutilAZs
=== CONT  TestAccResourceCluster_basicV2_mutilAZs
--- PASS: TestAccResourceCluster_basicV2_mutilAZs (1657.50s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       1657.559s

make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccLogicalCluster_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccLogicalCluster_basic -timeout 360m -parallel 4
=== RUN   TestAccLogicalCluster_basic
=== PAUSE TestAccLogicalCluster_basic
=== CONT  TestAccLogicalCluster_basic
--- PASS: TestAccLogicalCluster_basic (2046.23s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       2046.414s

 make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccDisasterRecoveryTasksDataSource_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccDisasterRecoveryTasksDataSource_basic -timeout 360m -parallel 4
=== RUN   TestAccDisasterRecoveryTasksDataSource_basic
=== PAUSE TestAccDisasterRecoveryTasksDataSource_basic
=== CONT  TestAccDisasterRecoveryTasksDataSource_basic
--- PASS: TestAccDisasterRecoveryTasksDataSource_basic (81.59s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       81.648s

 make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccEventSubscriptionsDataSource_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccEventSubscriptionsDataSource_basic -timeout 360m -parallel 4
=== RUN   TestAccEventSubscriptionsDataSource_basic
=== PAUSE TestAccEventSubscriptionsDataSource_basic
=== CONT  TestAccEventSubscriptionsDataSource_basic
--- PASS: TestAccEventSubscriptionsDataSource_basic (85.14s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       85.257s

make testacc TEST=./huaweicloud/services/acceptance/dws TESTARGS='-run TestAccDwsFlavorsDataSource_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/dws -v -run TestAccDwsFlavorsDataSource_basic -timeout 360m -parallel 4
=== RUN   TestAccDwsFlavorsDataSource_basic
=== PAUSE TestAccDwsFlavorsDataSource_basic
=== CONT  TestAccDwsFlavorsDataSource_basic
--- PASS: TestAccDwsFlavorsDataSource_basic (31.78s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/dws       31.842s

• Documentation updated.

• Schema updated.

• CheckDeleted.

  • a. During query operation (Read Context)
    aa. Resource not found
    >>>>>> Paste the screenshot here <<<<<<

  • b. During delete/disassociate/unbind operation (Delete Context)
    ba. Resource not found
    >>>>>> Paste the screenshot here <<<<<<

[Lance52259]

/approve
/lgtm

[github-ci-robot]

This PR has been approved by: @Lance52259

/approve
/lgtm