WIP:Render only commit title

What does this MR do?

Render only commit title in builds/Add markdown to commit message

Why was this MR needed?

For better readability

What are the relevant issue numbers?

Closes #19420 (closed)

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• CHANGELOG entry added

• Tests

  • All builds are passing

• Squashed related commits together

cc: @kradydal @yorickpeterse @grzesiek @tmaczukin @tomash @chastell