Update sanity.yml

Author: vaslabs

.github/workflows/sanity.yml

@@ -2,8 +2,8 @@ on:
   push:
     branches:    
       - '*/*'       # matches every branch containing a single '/'
-      - remaster
-      - '!master'   # excludes master
+      - master
+      - '!legacy'   # excludes master
 
 name: Build
 jobs:
@@ -37,4 +37,4 @@ jobs:
           run: make build
 
         - name: Test service
-          run: make test-backend
+          run: make test-backend