support s3 config profile

[takaidohigasi]

add s3 config profile to enhance profile option for br

pingcap/tidb#46609

[CLAassistant]

All committers have signed the CLA.

[takaidohigasi]

mkdir -p /home/runner/work/kvproto/kvproto/bin
/home/runner/work/kvproto/kvproto/scripts/check.sh
diff --git a/scripts/proto.lock b/scripts/proto.lock
index 9fa90a3..5a10b1e 100[6](https://github.com/pingcap/kvproto/actions/runs/6082628871/job/16500801744#step:4:7)44
--- a/scripts/proto.lock
+++ b/scripts/proto.lock
@@ -20150,4 +20150,4 @@
       }
     }
   ]
-}
+}
\ No newline at end of file
Please add proto.lock to git.
make: *** [Makefile:[14](https://github.com/pingcap/kvproto/actions/runs/6082628871/job/16500801744#step:4:15): check] Error 1
Error: Process completed with exit code 2.

[takaidohigasi]

@disksing Would you pleaese run the test again?