Updated test workflow to reflect branch renames

no issue

- 4.x has been renamed to main, which is now the default
- `master` is now 3.x, which is on a different set of workflows anyway

.github/workflows/test.yml

@@ -3,9 +3,8 @@ on:
   pull_request:
   push:
     branches:
-      - master
-      - '4.0'
-      - 3.*
+      - main
+      - 3.x
       - 2.x
       - 'renovate/*'
 env:
@@ -23,7 +22,7 @@ jobs:
       - run: yarn
       - run: yarn lint
       - uses: daniellockyer/action-slack-build@master
-        if: failure() && github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/4.0')
+        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
         with:
           status: ${{ job.status }}
         env:
@@ -68,11 +67,6 @@ jobs:
           sleep 20 && { kill $! && wait $!; } 2>/dev/null
 
       - run: yarn knex-migrator rollback --v 4.0 --force
-        if: github.ref == 'refs/heads/4.0'
-
-      - run: yarn knex-migrator rollback --v 3.0 --force
-        if: github.ref == 'refs/heads/master'
-
       - run: yarn knex-migrator migrate --force
 
   test:
@@ -114,7 +108,7 @@ jobs:
       - run: grunt test-regression --verbose
 
       - uses: daniellockyer/action-slack-build@master
-        if: failure() && github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/4.0')
+        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
         with:
           status: ${{ job.status }}
         env:
@@ -160,7 +154,7 @@ jobs:
       #     ghost update -f -d $DIR --zip $GITHUB_WORKSPACE/ghost.zip
 
       - uses: daniellockyer/action-slack-build@master
-        if: failure() && github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/4.0')
+        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
         with:
           status: ${{ job.status }}
         env:
@@ -169,7 +163,7 @@ jobs:
   canary:
     runs-on: ubuntu-18.04
     needs: [lint, migrations, test, ghost-cli]
-    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/4.0')
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     name: Canary
     steps:
       - uses: actions/checkout@v2
@@ -189,40 +183,18 @@ jobs:
       - run: yarn
       - run: grunt master
 
-      - run: git checkout 4.0 && yarn
-        if: github.ref == 'refs/heads/4.0'
-      - run: git checkout 4.0 && yarn
-        if: github.ref == 'refs/heads/4.0'
-        working-directory: core/client
-
       - run: echo "ghost_hash=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
       - run: echo "ghost_admin_hash=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
         working-directory: core/client
       - run: if [ -n "$(git status --porcelain)" ]; then git add core/client content/themes/casper && git commit -m "Updated Ghost-Admin and Casper"; fi
 
       - run: npm version premajor --preid="pre.$ghost_hash.$ghost_admin_hash"
-        if: github.ref == 'refs/heads/4.0'
       - run: npm version premajor --preid="pre.$ghost_hash.$ghost_admin_hash"
-        if: github.ref == 'refs/heads/4.0'
-        working-directory: core/client
-
-      - run: npm version preminor --preid="pre.$ghost_hash.$ghost_admin_hash"
-        if: github.ref == 'refs/heads/master'
-      - run: npm version preminor --preid="pre.$ghost_hash.$ghost_admin_hash"
-        if: github.ref == 'refs/heads/master'
         working-directory: core/client
 
       - run: grunt release --skip-update
 
       - uses: actions/upload-artifact@v2
-        if: github.ref == 'refs/heads/4.0'
-        with:
-          name: ghost-4.0-canary
-          path: .dist/release/*
-          retention-days: 7
-
-      - uses: actions/upload-artifact@v2
-        if: github.ref == 'refs/heads/master'
         with:
           name: ghost-canary
           path: .dist/release/*