Fix lint on dev (#22512)

## Description:

Fix a lint issue in credstash script.


**Related issue (if applicable):** fixes #<home-assistant issue number goes here>

**Pull request in [home-assistant.io](https://github.com/home-assistant/home-assistant.io) with documentation (if applicable):** home-assistant/home-assistant.io#<home-assistant.io PR number goes here>

## Example entry for `configuration.yaml` (if applicable):
```yaml

```

## Checklist:
  - [ ] The code change is tested and works locally.
  - [ ] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**
  - [ ] There is no commented out code in this PR.

If user exposed functionality or configuration variables are added/changed:
  - [ ] Documentation added/updated in [home-assistant.io](https://github.com/home-assistant/home-assistant.io)

If the code communicates with devices, web services, or third-party tools:
  - [ ] New dependencies have been added to the `REQUIREMENTS` variable ([example][ex-requir]).
  - [ ] New dependencies are only imported inside functions that use them ([example][ex-import]).
  - [ ] New or updated dependencies have been added to `requirements_all.txt` by running `script/gen_requirements_all.py`.
  - [ ] New files were added to `.coveragerc`.

If the code does not interact with devices:
  - [ ] Tests have been added to verify that the new code works.

[ex-requir]: https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/keyboard/__init__.py#L14
[ex-import]: https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/keyboard/__init__.py#L23

homeassistant/scripts/credstash.py

@@ -24,7 +24,7 @@ def run(args):
         'value', help="The value to save when putting a secret",
         nargs='?', default=None)
 
-    # pylint: disable=no-member
+    # pylint: disable=import-error, no-member
     import credstash
 
     args = parser.parse_args(args)