Exclude some files from PR checks (#61889)

Author: wtgodbe

.azure/pipelines/ci-public.yml

@@ -19,6 +19,15 @@ pr:
   branches:
     include:
     - '*'
+  paths:
+    exclude:
+    - .devcontainer/*
+    - .github/*
+    - .vscode/*
+    - docs/*
+    - '**/*.md'
+    - LICENSE.TXT
+    - THIRD-PARTY-NOTICES.TXT
 
 parameters:
 # Choose whether to skip tests when running pipeline manually.