Need to set the E2E test timeout after bumping Ginkgo to v2

[blackpiglet]

Describe the problem/challenge you have

The Ginkgo v2 default timeout is 1h, and the Ginkgo v1 default timeout is 24h. https://onsi.github.io/ginkgo/MIGRATING_TO_V2#timeout-behavior The current E2E test time duration is more than 4 hours.

Describe the solution you'd like

Need to set the default timeout accordingly.

Anything else you would like to add:

Environment:

• Velero version (use velero version):
• Kubernetes version (use kubectl version):
• Kubernetes installer & version:
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):

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