mongodb/mongo-tools: release/release.go; 45 LoC

Found a possible issue in [mongodb/mongo-tools](https://www.github.com/mongodb/mongo-tools) at [release/release.go](https://github.com/mongodb/mongo-tools/blob/dca14b998f38e66da8d7df725bb0272cfb4cd3f7/release/release.go#L1161-L1205)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> range-loop variable mongoVersionName used in defer or goroutine at line 1166

[Click here to see the code in its original context.](https://github.com/mongodb/mongo-tools/blob/dca14b998f38e66da8d7df725bb0272cfb4cd3f7/release/release.go#L1161-L1205)

Click here to show the 45 line(s) of Go which triggered the analyzer.

```go
for mongoVersionName, mongoVersionNumber := range versionsToRelease {
for _, mongoEdition := range editionsToRelease {
wg.Add(1)
go func() {
var err error
prefix := fmt.Sprintf("%s-%s-%s", pf.Variant(), mongoEdition, mongoVersionName)
// retry twice on failure.
maxRetries := 2
for retries := maxRetries; retries >= 0; retries-- {
curatorArgs := []string{
"--level", "debug",
"repo", "submit",
"--service", "https://barque.corp.mongodb.com",
"--config", "etc/repo-config.yml",
"--distro", pf.Name,
"--arch", pf.Arch,
"--edition", mongoEdition,
"--version", mongoVersionNumber,
"--packages", packagesURL,
"--username", os.Getenv("BARQUE_USERNAME"),
"--api_key", os.Getenv("BARQUE_API_KEY"),
}

if retries == maxRetries {
log.Printf("starting curator for %s\n", prefix)
} else {
log.Printf("restarting curator for %s after failure\n", prefix)
}
err = runAndStreamStderr(prefix, "./curator", curatorArgs...)
if err == nil {
log.Printf("finished curator for %s\n", prefix)
wg.Done()
return
}
}
check(err, "run curator for %s", prefix)
}()

// We need to sleep briefly between curator
// invocations because of an auth race condition in
// barque.
// Sleep a bit more to try to keep the flakiness from showing up.
time.Sleep(5 * time.Second)
}
}

```

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See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: dca14b998f38e66da8d7df725bb0272cfb4cd3f7