seo: cleanup and optimize roadmap(s) metadata (#8828)

* audit first 11 roadmaps

* audit next 10 roadmaps

* audit next 15 roadmaps

* audit last 22 roadmaps

* Update src/data/roadmaps/ai-data-scientist/ai-data-scientist.md

* Update src/data/roadmaps/aspnet-core/aspnet-core.md

* apply suggestions from code review

* fix seo title

* Update src/data/roadmaps/frontend/frontend.md

* Update src/data/roadmaps/backend/backend.md

---------

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/devops/devops.md

@@ -57,9 +57,9 @@ seo:
   title: 'DevOps Roadmap: Learn to become a DevOps Engineer or SRE'
   description: 'Learn to become a modern DevOps engineer by following the steps, skills, resources and guides listed in our community-driven roadmap.'
   keywords:
-    - 'devops roadmap 2024'
-    - 'sre roadmap 2024'
-    - 'operations roadmap 2024'
+    - 'devops roadmap 2025'
+    - 'sre roadmap 2025'
+    - 'operations roadmap 2025'
     - 'guide to becoming a devops engineer'
     - 'devops roadmap'
     - 'sre roadmap'