fix(Cloud Databases):Incorporate new client-error-toolchain in data sources

[lornakelly]

Currently we are using an outdated way of deal with errors

This PR will:

• Update our data sources to use the new client-error-toolchain
• Fix for a hardcoded location in a test

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Relates OR Closes #0000

Output from acceptance testing:

$ make testacc TESTARGS='-run=TestAccIBMDatabaseBackupDataSourceBasic'
--- PASS: TestAccIBMDatabaseBackupDataSourceBasic (18.64s)

$ make testacc TESTARGS='-run=TestAccIBMDatabaseBackupsDataSourceBasic'
--- PASS: TestAccIBMDatabaseBackupsDataSourceBasic (14.93s)

$ make testacc TESTARGS='-run=TestAccIBMDatabasePointInTimeRecoveryDataSourceBasic'
--- PASS: TestAccIBMDatabasePointInTimeRecoveryDataSourceBasic (638.15s)

$ make testacc TESTARGS='-run=TestAccIBMDatabaseTasksDataSourceBasic'
--- PASS: TestAccIBMDatabasePointInTimeRecoveryDataSourceBasic (638.15s)

$ make testacc TESTARGS='-run=TestAccIBMDatabaseDataSource_basic'
--- PASS: TestAccIBMDatabaseDataSource_basic (681.04s)

$ make testacc TESTARGS='-run=TestAccIBMDatabaseConnectionDataSourceBasic'
--- PASS: TestAccIBMDatabaseConnectionDataSourceBasic (696.35s)

...

[omaraibrahim]

We want to capitalize this

[lornakelly]

Updated

[omaraibrahim]

LGTM

[obai-1]

Has this sdk version released?

[lornakelly]

Yep https://github.com/IBM/cloud-databases-go-sdk/releases/tag/v0.7.0