release-26.2: kv/kvserver: TestFlowControlRaftMembershipV2 failed

kv/kvserver.TestFlowControlRaftMembershipV2 [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Ci_TestsAwsLinuxArm64_UnitTests/21418352?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Ci_TestsAwsLinuxArm64_UnitTests/21418352?buildTab=artifacts#/) on release-26.2 @ [153163b686da202854affa8006106a76401e23cf](https://github.com/cockroachdb/cockroach/commits/153163b686da202854affa8006106a76401e23cf):

```
=== RUN TestFlowControlRaftMembershipV2
test_log_scope.go:172: test logs captured to: /artifacts/tmp/_tmp/95e73b908829e1a2d7394e5c2f5431d0/logTestFlowControlRaftMembershipV21892897684
test_log_scope.go:82: use -show-logs to present logs inline
flow_control_integration_test.go:1061: -- test log scope end --
test logs left over in: /artifacts/tmp/_tmp/95e73b908829e1a2d7394e5c2f5431d0/logTestFlowControlRaftMembershipV21892897684
--- FAIL: TestFlowControlRaftMembershipV2 (6.23s)
=== RUN TestFlowControlRaftMembershipV2/kvadmission.flow_control.mode=apply_to_all
test_server_shim.go:146: using test tenant configuration from testserver factory defaults
test_server_shim.go:638: DRPC is enabled (via testserver factory defaults)
flow_control_integration_test.go:4019:
/home/roach/.cache/bazel/_bazel_roach/c5a4e7d36696d9cd970af2045211a7df/sandbox/processwrapper-sandbox/19034/execroot/com_github_cockroachdb_cockroach/bazel-out/aarch64-fastbuild/bin/pkg/kv/kvserver/kvserver_test_/kvserver_test.runfiles/com_github_cockroachdb_cockroach/pkg/kv/kvserver/testdata/flow_control_integration_v2/raft_membership_v2_encoding_apply_to_all:1:
echo
output didn't match expected:
@@ -152,23 +152,23 @@
kvflowcontrol.tokens.eval.elastic.deducted | 11 MiB
kvflowcontrol.tokens.eval.elastic.returned | 11 MiB
kvflowcontrol.tokens.eval.elastic.returned.disconnect | 2.0 MiB
kvflowcontrol.tokens.eval.elastic.unaccounted | 0 B
kvflowcontrol.tokens.eval.regular.available | 80 MiB
- kvflowcontrol.tokens.eval.regular.deducted | 11 MiB
- kvflowcontrol.tokens.eval.regular.returned | 11 MiB
+ kvflowcontrol.tokens.eval.regular.deducted | 10 MiB
+ kvflowcontrol.tokens.eval.regular.returned | 10 MiB
kvflowcontrol.tokens.eval.regular.returned.disconnect | 2.0 MiB
kvflowcontrol.tokens.eval.regular.unaccounted | 0 B
kvflowcontrol.tokens.send.elastic.available | 40 MiB
kvflowcontrol.tokens.send.elastic.deducted | 11 MiB
kvflowcontrol.tokens.send.elastic.deducted.force_flush_send_queue | 0 B
kvflowcontrol.tokens.send.elastic.deducted.prevent_send_queue | 0 B
kvflowcontrol.tokens.send.elastic.returned | 11 MiB
kvflowcontrol.tokens.send.elastic.returned.disconnect | 2.0 MiB
kvflowcontrol.tokens.send.elastic.unaccounted | 0 B
kvflowcontrol.tokens.send.regular.available | 80 MiB
- kvflowcontrol.tokens.send.regular.deducted | 11 MiB
+ kvflowcontrol.tokens.send.regular.deducted | 10 MiB
kvflowcontrol.tokens.send.regular.deducted.prevent_send_queue | 0 B
- kvflowcontrol.tokens.send.regular.returned | 11 MiB
+ kvflowcontrol.tokens.send.regular.returned | 10 MiB
kvflowcontrol.tokens.send.regular.returned.disconnect | 2.0 MiB
kvflowcontrol.tokens.send.regular.unaccounted | 0 B

--- FAIL: TestFlowControlRaftMembershipV2/kvadmission.flow_control.mode=apply_to_all (2.56s)
```
Help

See also: [How To Investigate a Go Test Failure \(internal\)](https://cockroachlabs.atlassian.net/l/c/HgfXfJgM)

/cc @cockroachlabs/kv-triage

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Jira issue: CRDB-65676