Rename workflow branches

Author: mszostok

.github/workflows/codeql-analysis.yml

@@ -2,10 +2,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches: [ main ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ $default-branch ]
+    branches: [ main ]
   schedule:
     - cron: '15 15 * * 2'
 

.github/workflows/pull-requests.yml

@@ -2,7 +2,7 @@ name: Pull request
 
 on:
   pull_request:
-    branches: [ $default-branch ]
+    branches: [ main ]
 
 env:
   GO111MODULE: on