Make workflows agnostic to default branch name

Author: SamWilsn

.github/workflows/gh-pages.yaml

@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - master
+      - mainnet
+      - 'forks/**'
   workflow_dispatch:
   pull_request:
 
@@ -41,7 +43,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     name: "Deploy Documentation"
-    if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+    if: ${{ github.event_name == 'push' && github.ref_name == github.event.repository.default_branch }}
 
     permissions:
       pages: write

.github/workflows/test.yaml

@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - master
+      - mainnet
+      - 'forks/**'
   workflow_dispatch:
   pull_request: