Add path filters to skip builds on documentation-only changes (#2)

Added paths-ignore filters to workflow to skip CI runs when only
documentation files are changed.

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: bjoernbethge

.github/workflows/MainDistributionPipeline.yml

@@ -1,7 +1,21 @@
 name: Main Extension Distribution Pipeline
 on:
   push:
+    paths-ignore:
+      - '**.md'
+      - 'doc/**'
+      - 'docs/**'
+      - 'LICENSE'
+      - '.gitignore'
+      - '**.txt'
   pull_request:
+    paths-ignore:
+      - '**.md'
+      - 'doc/**'
+      - 'docs/**'
+      - 'LICENSE'
+      - '.gitignore'
+      - '**.txt'
   workflow_dispatch:
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || '' }}-${{