Adjust branch name

Author: samdark

.github/workflows/build.yml

@@ -14,9 +14,9 @@
 
 name: Build
 on:
-  # Trigger the workflow on pushes to only the 'main' branch (this avoids duplicate checks being run e.g., for dependabot pull requests)
+  # Trigger the workflow on pushes to only the 'master' branch (this avoids duplicate checks being run e.g., for dependabot pull requests)
   push:
-    branches: [ main ]
+    branches: [ master ]
   # Trigger the workflow on any pull request
   pull_request: