[ci/docs] Fix docs pipeline build failure and path references (AcademySoftwareFoundation#2171)

**Link the Issue(s) this Pull Request is related to.**
- AcademySoftwareFoundation#1800 

**Summarize your change.**

- Update workflow path filters from docs.yml to docs-pipeline.yml (file
was renamed in d7f51b5 but references were not updated)

Author: ramonfigueiredo

.github/workflows/docs-pipeline.yml

@@ -7,13 +7,13 @@ on:
       - main
     paths:
       - 'docs/**'
-      - '.github/workflows/docs.yml'
+      - '.github/workflows/docs-pipeline.yml'
     tags:
       - 'v*'  # Build docs for version tags
   pull_request:
     paths:
       - 'docs/**'
-      - '.github/workflows/docs.yml'
+      - '.github/workflows/docs-pipeline.yml'
   workflow_dispatch:
     inputs:
       version: