fix(apig/workspace): using log.Printf instead of errors

[wuzhuanhong]

What this PR does / why we need it:

Because some APIs are not released in certain regions, forcibly calling the interface will block normal business logic. Use log.Printf to record log errors.

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/apig TESTARGS='-run TestAccInstance_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/apig -v -run TestAccInstance_basic -timeout 360m -parallel 4
=== RUN   TestAccInstance_basic
=== PAUSE TestAccInstance_basic
=== CONT  TestAccInstance_basic
--- PASS: TestAccInstance_basic (1135.71s)
PASS
ok      [github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/apig](http://github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/apig)      1135.771s


make testacc TEST=./huaweicloud/services/acceptance/workspace TESTARGS='-run TestAccDesktop_basic'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/workspace -v -run TestAccDesktop_basic -timeout 360m -parallel 4
=== RUN   TestAccDesktop_basic
--- PASS: TestAccDesktop_basic (1142.52s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/workspace 1142.592s

• 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