Update regex in TestAccContainerCluster_errorNoClusterCreated acc test

[SarahFrench]

Description

This test can fail due to incorrect error messages:

This PR updates the regex used to check the error.

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Release Note Template for Downstream PRs (will be copied)

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))

[modular-magician]

Tests analytics

Total tests: 3266
Passed tests 2930
Skipped tests: 334
Affected tests: 2

Action taken

Found 2 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

TestAccDataprocClusterIamPolicy|TestAccGKEHub2Fleet_gkehubFleetBasicExample_update

Get to know how VCR tests work

[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccDataprocClusterIamPolicy[Debug log]
TestAccGKEHub2Fleet_gkehubFleetBasicExample_update[Debug log]

Rerun these tests in REPLAYING mode to catch issues

$\textcolor{green}{\textsf{No issues found for passed tests after REPLAYING rerun.}}$

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$\textcolor{green}{\textsf{All tests passed!}}$
View the build log or the debug log for each test