Add missing deprecation warning for --policies-team (#41071)

<!-- Add the related story/sub-task/bug number, like Resolves #123, or
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**Related issue:** For #41031

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

- [ ] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
n/a

## Testing

- [ ] Added/updated automated tests
- [X] QA'd all new/changed functionality manually
<img width="831" height="49" alt="image"
src="https://github.com/user-attachments/assets/01bfa42f-4d33-4597-aa8d-db08b187b6d2"
/>

For unreleased bug fixes in a release candidate, one of:

- [X] Confirmed that the fix is not expected to adversely impact load
test results

cmd/fleetctl/fleetctl/apply.go

@@ -54,6 +54,10 @@ func applyCommand() *cli.Command {
 			enableLogTopicsFlag(),
 			disableLogTopicsFlag(),
 		},
+		Before: func(c *cli.Context) error {
+			logDeprecatedFlagName(c, "policies-team", "policies-fleet")
+			return nil
+		},
 		Action: func(c *cli.Context) error {
 			// Disable field deprecation warnings for now.
 			// TODO - remove this in future release to unleash warnings.