oauth e2e: fix the expected http2 error to match golang 1.17+

[stlaz]

Golang 1.17 made it so that a TLS connection is terminated when
a client with supported ALPN protocols attempts to reach a server
that does not support any ALPN protocols or the clients' ALPN
protocols don't match those of the server.

[deads2k]

/lgtm

I want my payload! :)

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: deads2k, stlaz

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• test/extended/oauth/OWNERS [deads2k,stlaz]

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[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci]

@stlaz: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-cgroupsv2	f062561	link	false	/test e2e-aws-cgroupsv2
ci/prow/e2e-agnostic-cmd	f062561	link	false	/test e2e-agnostic-cmd
ci/prow/e2e-gcp-csi	f062561	link	false	/test e2e-gcp-csi
ci/prow/e2e-gcp	f062561	link	true	/test e2e-gcp
ci/prow/e2e-gcp-upgrade	f062561	link	true	/test e2e-gcp-upgrade
ci/prow/e2e-aws-single-node	f062561	link	false	/test e2e-aws-single-node

Full PR test history. Your PR dashboard.

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[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.

[deads2k]

GCP tests are blocked on another problem, I'm going to take a chance on this.