Add CI runs for release/3.0

Commit migrated from https://github.com/dotnet/corefx/commit/6232aedafca10eded415b2a291465189b2797ee9

diff --git a/eng/pipelines/libraries/.azure-ci.yml b/eng/pipelines/libraries/.azure-ci.yml
index 195e86fd72106e020461b6c68d2c0ede15642496..c2c27fbbd5fbe1ac9a9a67508e5a9492d50f0043 100644 (file)
--- a/eng/pipelines/libraries/.azure-ci.yml
+++ b/eng/pipelines/libraries/.azure-ci.yml
@@ -7,6 +7,7 @@ trigger:
   branches:
     include:
     - master
+    - release/3.0
 
 # TODO: add paths to exclude CI when modifying docs or stuff not affecting the build
 pr: