release-26.3.0-rc: pkg/ccl/testccl/authccl/authccl_test: TestClientAddrOverride failed

pkg/ccl/testccl/authccl/authccl_test.TestClientAddrOverride [failed](https://mesolite.cluster.engflow.com/invocations/default/24245e4b-02ce-40f7-9568-e95ee62df892?testReportRun=3&testReportShard=1&testReportAttempt=1#targets-Ly9wa2cvY2NsL3Rlc3RjY2wvYXV0aGNjbDphdXRoY2NsX3Rlc3Q=) on release-26.3.0-rc @ [0a3dc2524e335b85175c507a318dd57f28f92ef3](https://github.com/cockroachdb/cockroach/commits/0a3dc2524e335b85175c507a318dd57f28f92ef3):

```
=== RUN TestClientAddrOverride
I260817 12:30:04.285827 1 (gostd) rand.go:288 [-] 1 random seed: 5204277238604153953
test_log_scope.go:172: test logs captured to: outputs.zip/logTestClientAddrOverride1267910981
test_server_shim.go:168: automatically injected an external process virtual cluster under test; see comment at top of test_server_shim.go for details.
auth_test.go:758: -- test log scope end --
test logs left over in: outputs.zip/logTestClientAddrOverride1267910981
--- FAIL: TestClientAddrOverride (106.92s)
=== RUN TestClientAddrOverride/11.22.33.44:5566/check-server-hba-uses-override
auth_test.go:713: pq: internal error while retrieving user account memberships: operation "get-user-session" timed out after 10.001s (given timeout 10s): interrupted during singleflight lookup role membership:refreshMembershipCache-2: context deadline exceeded
--- FAIL: TestClientAddrOverride/11.22.33.44:5566/check-server-hba-uses-override (10.56s)
=== RUN TestClientAddrOverride/11.22.33.44:5566
--- FAIL: TestClientAddrOverride/11.22.33.44:5566 (16.66s)
```

Parameters:
- attempt=1
- race=true
- run=3
- shard=1
Help

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

/cc @cockroachlabs/cloud-identity @cockroachlabs/security-engineering @cockroachlabs/product-security

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Jira issue: CRDB-66759