MWPW-144470 Support article header author without link

[meganthecoder]

• Allow author image to be pulled from data attribute instead of link
• Needed for bacom blog but not brand blog

Resolves: MWPW-144470

Test URLs:
(Regression)

• Before: https://main--milo--adobecom.hlx.page/drafts/methomas/blog-migration/article-header/connecting-external-data-sources-to-adobe-experience-manager-guides?martech=off
• After: https://methomas-disable-article-author--milo--adobecom.hlx.page/drafts/methomas/blog-migration/article-header/connecting-external-data-sources-to-adobe-experience-manager-guides?martech=off

Bacom blog:
(Combined with bacom blog feature branch: https://github.com/adobecom/bacom-blog/tree/methomas/disable-author)

• Before: https://main--bacom-blog--adobecom.hlx.live/blog/the-latest/what-a-marketing-system-of-record-with-workfront-planning-can-do-for-you
• After: https://methomas-disable-author--bacom-blog--adobecom.hlx.live/blog/the-latest/what-a-marketing-system-of-record-with-workfront-planning-can-do-for-you?milolibs=methomas-disable-article-author

Brand blog (regression):

• Before: https://main--blog--adobecom.hlx.live/en/publish/2024/09/10/adobe-stock-continued-commitments-to-creators
• After: https://main--blog--adobecom.hlx.live/en/publish/2024/09/10/adobe-stock-continued-commitments-to-creators?milolibs=methomas-disable-article-author

[aem-code-sync]

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Commits

• fb933ef ✅ (latest)

[aem-code-sync]

	Page	Scores	Audits	Google
M	/drafts/methomas/blog-migration/article-header/connecting-external-data-sources- to-adobe-experience-manager-guides?martech=off
D	/drafts/methomas/blog-migration/article-header/connecting-external-data-sources- to-adobe-experience-manager-guides?martech=off

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.09%. Comparing base (3fd877c) to head (fb933ef).
Report is 14 commits behind head on stage.

Additional details and impacted files

@@            Coverage Diff             @@
##            stage    #2863      +/-   ##
==========================================
- Coverage   96.09%   96.09%   -0.01%     
==========================================
  Files         215      215              
  Lines       53954    53955       +1     
==========================================
- Hits        51849    51848       -1     
- Misses       2105     2107       +2     

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[github-actions]

Reminder to set the Ready for Stage label - to queue this to get merged to stage & production.

[milo-pr-merge]

Skipped 2863: "MWPW-144470 Support article header author without link" due to file "test/blocks/article-header/article-header.test.js" overlap. Merging will be attempted in the next batch