br: avoid retry if it's ec2metadata (#47651)#47790

Merged

ti-chi-bot[bot] merged 2 commits intopingcap:release-7.1from ti-chi-bot:cherry-pick-47651-to-release-7.1

Oct 26, 2023

+4-4

Commits on Oct 19, 2023

This is an automated cherry-pick of pingcap#47651

Leavrth
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resolve conflicts
Leavrth
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