[Bug]: CCJK: do not use italic font-style

### Code of conduct

- [X] I agree to follow this project's code of conduct.

### Impacted component(s)

status-light, spectrum-heading

### Expected behavior

CCJK does not use italic font style.

### Actual behavior

```

--spectrum-heading-sans-serif-light-strong-emphasized-font-style: var(
--spectrum-italic-font-style
);

spectrum-status-light.css,

:host([variant='neutral']) {
color: var(
--highcontrast-statuslight-subdued-content-color-default,
var(
--mod-statuslight-subdued-content-color-default,
var(--spectrum-statuslight-subdued-content-color-default)
)
);
**font-style: italic;**
}

.spectrum-Heading--light strong em {
font-style: var(
--mod-heading-sans-serif-light-strong-emphasized-font-style,
var(**--spectrum-heading-sans-serif-light-strong-emphasized-font-style**)
);

```

### Screenshots

_No response_

### What browsers are you seeing the problem in?

_No response_

### How can we reproduce this issue?

1. Go to '...'
2. Click on '....'
3. Scroll to '....'
4. Check console
5. See error

### Sample code or abstract reproduction which illustrates the problem

_No response_

### Severity

None

### Logs taken while reproducing problem

_No response_

Start by locating the status-light styles and spectrum-heading font-style declarations shown in the issue, then compare their CCJK output with the expected behavior. Confirm the affected declarations no longer apply italic styling to CCJK, and verify the generated component styles in the relevant browser or component examples.

Written by the indexing model from the issue text.