[8.x] [Observability Onboarding] Add different test subjects to the f…

…ooter links (#201383) (#201583)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Observability Onboarding] Add different test subjects to the footer
links (#201383)](#201383)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Mykola
Harmash","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-11-25T12:51:13Z","message":"[Observability
Onboarding] Add different test subjects to the footer links
(#201383)\n\nCloses
#201103","sha":"e44de689fbe7e829a076a5e37fc48092868adaf5","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","backport:prev-minor","backport:prev-major","ci:project-deploy-observability"],"title":"[Observability
Onboarding] Add different test subjects to the footer
links","number":201383,"url":"https://github.com/elastic/kibana/pull/201383","mergeCommit":{"message":"[Observability
Onboarding] Add different test subjects to the footer links
(#201383)\n\nCloses
#201103","sha":"e44de689fbe7e829a076a5e37fc48092868adaf5"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/201383","number":201383,"mergeCommit":{"message":"[Observability
Onboarding] Add different test subjects to the footer links
(#201383)\n\nCloses
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BACKPORT-->

Co-authored-by: Mykola Harmash <[email protected]>

x-pack/plugins/observability_solution/observability_onboarding/public/application/footer/footer.tsx

@@ -43,6 +43,7 @@ export const Footer: FunctionComponent = () => {
         { defaultMessage: 'Explore demo' }
       ),
       link: URL_DEMO_ENV,
+      testSubject: 'observabilityOnboardingFooterExploreDemoLink',
     },
     {
       iconUrl: forumIconUrl,
@@ -65,6 +66,7 @@ export const Footer: FunctionComponent = () => {
         { defaultMessage: 'Open Elastic Discuss forum' }
       ),
       link: URL_FORUM,
+      testSubject: 'observabilityOnboardingFooterDiscussForumLink',
     },
     {
       iconUrl: docsIconUrl,
@@ -87,6 +89,7 @@ export const Footer: FunctionComponent = () => {
         { defaultMessage: 'Learn more about all Elastic features' }
       ),
       link: docLinks.links.observability.guide,
+      testSubject: 'observabilityOnboardingFooterLearnMoreLink',
     },
     {
       iconUrl: supportIconUrl,
@@ -105,6 +108,7 @@ export const Footer: FunctionComponent = () => {
         { defaultMessage: 'Open Support Hub' }
       ),
       link: helpSupportUrl,
+      testSubject: 'observabilityOnboardingFooterOpenSupportHubLink',
     },
   ];
 
@@ -127,7 +131,7 @@ export const Footer: FunctionComponent = () => {
             <EuiText size="xs">
               <p>
                 <EuiLink
-                  data-test-subj="observabilityOnboardingFooterLearnMoreLink"
+                  data-test-subj={section.testSubject}
                   aria-label={section.linkARIALabel}
                   href={section.link}
                   target="_blank"