Changing "Fixes" to "Fixed by" in the user-facing view of the Vulnera…

…bility flyout (#196669)

## Summary

Changing "Fixes" to "Fixed by" in the user-facing view of the
Vulnerability flyout


![image](https://github.com/user-attachments/assets/e06bf5a2-7751-46de-b935-d221ac7c9e09)

Hi @maxcold  Please review my PR.

Thank you

- fixes #195965

Co-authored-by: Paulo Silva <paulo.henrique@elastic.co>

x-pack/plugins/cloud_security_posture/public/pages/vulnerabilities/vulnerabilities_finding_flyout/vulnerability_overview_tab.tsx

@@ -309,7 +309,7 @@ export const VulnerabilityOverviewTab = ({ vulnerabilityRecord }: VulnerabilityT
         <h4 css={flyoutSubheadingStyle}>
           <FormattedMessage
             id="xpack.csp.vulnerabilities.vulnerabilityOverviewTab.fixes"
-            defaultMessage="Fixes"
+            defaultMessage="Fixed by"
           />
         </h4>
         <EuiText>{fixesDisplayText || EMPTY_VALUE}</EuiText>