fix(autofix): Update integration setup step text to fix link and be more helpful (#71264)

static/app/components/modals/autofixSetupModal.tsx

@@ -71,7 +71,7 @@ function AutofixIntegrationStep({autofixSetup}: {autofixSetup: AutofixSetupRespo
       <Fragment>
         <p>
           {tct(
-            'You have an active GitHub installation, but no linked repositories. Add repositories to the integration on the [integration settings page].',
+            'You have an active GitHub installation, but no code mappings for this project. Add code mappings by visiting the [link:integration settings page] and editing your configuration.',
             {
               link: <ExternalLink href={`/settings/integrations/github/`} />,
             }