pkg/sql/copy/copy_test: TestDataDriven failed

pkg/sql/copy/copy_test.TestDataDriven [failed](https://mesolite.cluster.engflow.com/invocations/default/4dc9b877-e507-4615-8419-751d65a26f0e?testReportRun=2&testReportShard=1&testReportAttempt=1#targets-Ly9wa2cvc3FsL2NvcHk6Y29weV90ZXN0) on release-25.4 @ [53bf2f553773d46fd4d05d1465753393d84bfefb](https://github.com/cockroachdb/cockroach/commits/53bf2f553773d46fd4d05d1465753393d84bfefb):

```
github.com/cockroachdb/cockroach/pkg/util/stop.(*Stopper).RunTaskWithErr(0xc00e2fcdc0, {0xd1f5cf8, 0xc00530f040}, {0xbb51ef7, 0x28}, 0xc004dc9d18)
pkg/util/stop/stopper.go:358 +0x247
github.com/cockroachdb/cockroach/pkg/rpc.NewServerEx.func2({0xb96ffc0, 0xc0037b5808}, {0xd22e6a8, 0xc0100eb740}, 0x11ca6910, 0xc005156480)
pkg/rpc/context.go:147 +0x15c
github.com/cockroachdb/cockroach/pkg/rpc.serverStreamInterceptorsChain.run.func1({0xb96ffc0, 0xc0037b5808}, {0xd22e6a8, 0xc0100eb740})
pkg/rpc/context.go:908 +0x1e3
github.com/cockroachdb/cockroach/pkg/rpc.serverStreamInterceptorsChain.run({0xc0086ebce0, 0x4, 0x4}, {0xb96ffc0, 0xc0037b5808}, {0xd22e6a8, 0xc0100eb740}, 0x11ca6910, 0xc0116cd380)
pkg/rpc/context.go:910 +0x270
github.com/cockroachdb/cockroach/pkg/rpc.internalClientAdapter.MuxRangeFeed.func3()
pkg/rpc/context.go:1078 +0x1af
golang.org/x/sync/errgroup.(*Group).Go.func1()
external/org_golang_x_sync/errgroup/errgroup.go:93 +0x92
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 353238
external/org_golang_x_sync/errgroup/errgroup.go:78 +0x125

goroutine 352694 [select]:
github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*baseQueue).processLoop.func2({0xd1f3918, 0xc00b0620f0})
pkg/kv/kvserver/queue.go:1132 +0x1ae
github.com/cockroachdb/cockroach/pkg/util/stop.(*Stopper).RunAsyncTaskEx.func1({0xd1f3918, 0xc00b0620f0})
pkg/util/stop/stopper.go:447 +0x116
created by github.com/cockroachdb/cockroach/pkg/util/stop.(*Stopper).RunAsyncTaskEx in goroutine 352673
pkg/util/stop/stopper.go:445 +0x24f

goroutine 352716 [select]:
github.com/cockroachdb/cockroach/pkg/util/admission.initWorkQueue.func2()
pkg/util/admission/work_queue.go:402 +0xbd
created by github.com/cockroachdb/cockroach/pkg/util/admission.initWorkQueue in goroutine 352205
pkg/util/admission/work_queue.go:399 +0x676

goroutine 354275 [select]:
github.com/cockroachdb/cockroach/pkg/kv/kvclient/rangefeed.(*RangeFeed).processEvents(0xc014a64e00, {0xd1f38e0, 0xc009ba2c80}, {0xd255340, 0xc009ba2690}, 0xc00ba6a770)
pkg/kv/kvclient/rangefeed/rangefeed.go:434 +0x119
github.com/cockroachdb/cockroach/pkg/kv/kvclient/rangefeed.(*RangeFeed).run.func3({0xd1f38e0, 0xc009ba2c80})
pkg/kv/kvclient/rangefeed/rangefeed.go:391 +0x213
github.com/cockroachdb/cockroach/pkg/util/ctxgroup.GoAndWait.Group.GoCtx.func1()
pkg/util/ctxgroup/ctxgroup.go:200 +0x11b
golang.org/x/sync/errgroup.(*Group).Go.func1()
external/org_golang_x_sync/errgroup/errgroup.go:93 +0x92
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 354270
external/org_golang_x_sync/errgroup/errgroup.go:78 +0x125

goroutine 354379 [select]:
github.com/cockroachdb/cockroach/pkg/kv/kvclient/rangefeed/rangefeedcache.(*Watcher[...]).Run(0xd239b20, {0xd1f38e0, 0xc00a064820})
pkg/kv/kvclient/rangefeed/rangefeedcache/watcher.go:344 +0x11d9
github.com/cockroachdb/cockroach/pkg/kv/kvclient/rangefeed/rangefeedcache.Start[...].func1()
pkg/kv/kvclient/rangefeed/rangefeedcache/watcher.go:202 +0x2ed
github.com/cockroachdb/cockroach/pkg/util/stop.(*Stopper).RunAsyncTaskEx.func1({0xd1f5cf8, 0xc00e2fc640})
pkg/util/stop/stopper.go:447 +0x116
created by github.com/cockroachdb/cockroach/pkg/util/stop.(*Stopper).RunAsyncTaskEx in goroutine 352205
pkg/util/stop/stopper.go:445 +0x24f
```

Parameters:
- attempt=1
- race=true
- run=2
- shard=1
Help

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

/cc @cockroachlabs/sql-foundations

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Jira issue: CRDB-67408