ebs br: enable AWS snapshot FSR failed for API quota limitation

[BornChanger]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Run EBS snapshot restore with fsr warmup option against a k8s cluster where each data plane has more than 10 TiKV nodes.

2. What did you expect to see? (Required)

Restore succeed

3. What did you see instead (Required)

I1109 18:47:18.189386 9 restore.go:186] Error: InvalidRequest: Number of values of parameter SourceSnapshotIds must be less than or equal to 10. status code: 400, request id: 0e20ce03-a38a-4742-824d-014239952e5e

4. What is your TiDB version? (Required)

TiDB and BR 6.5 nightly

[BornChanger]

/component br

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/severity major

[BornChanger]

/label affects-6.5