[full-ci][tests-only] Bump core commit id for tests

[saw-jan]

Description

Bump core commit id to the latest for the tests.

Related Issue

Part of owncloud/QA#693

How Has This Been Tested?

• test environment:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[saw-jan]

[do-not-merge] blocked by PR owncloud/core#39414

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[phil-davis]

LGTM.

Note: the extra test fails are because the test code has been improved.
theDownloadedContentForMultipartByterangeShouldBe test method now has the int type declared for the expected $statusCode which is correct. Previously the "number" came as a string.

		if ($actualStatusCode === $statusCode) {
			$actualContent = (string) $this->response->getBody();
...

In current guzzle 7 (used for the acceptance test) getStatusCode() also returns an int. So now the strict comparison matches, and the content is being checked and reported.

Previously status code (string) "206" did not match actual status code (int) 206, so the test code did not think that a 206 really happened, and so did not check the detailed multi-part content.