Update workflows to target main branch

Author: deanward81

.github/workflows/build.yml

@@ -3,7 +3,7 @@ name: Build & Test
 on:
   pull_request:
     branches:
-    - master
+    - main
     paths-ignore:
     - 'docs/**' # Don't run workflow when files are only in the /docs directory
 

.github/workflows/packages.yml

@@ -3,7 +3,7 @@ name: Build, Test & Package
 on:
   push:
     branches:
-    - master
+    - main
     paths-ignore:
     - 'docs/**' # Don't run workflow when files are only in the /docs directory