DEV: Update CI workflows (#41)

Co-authored-by: discoursebuild <build@discourse.org>

.github/workflows/component-tests.yml

@@ -11,7 +11,29 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
+  check:
+    runs-on: ubuntu-latest
+    outputs:
+      tests_exist: ${{ steps.check_tests.outputs.tests_exist }}
+
+    steps:
+      - name: Install component
+        uses: actions/checkout@v3
+        with:
+          path: tmp/component
+          fetch-depth: 1
+
+      - name: Check QUnit existence
+        id: check_tests
+        shell: bash
+        run: |
+          if [ 0 -lt $(find tmp/component/test -type f \( -name "*.js" -or -name "*.es6" \) 2> /dev/null | wc -l) ]; then
+            echo "::set-output name=tests_exist::true"
+          fi
+
+  test:
+    needs: check
+    if: ${{ needs.check.outputs.tests_exist }}
     runs-on: ubuntu-latest
     container: discourse/discourse_test:slim-browsers
     timeout-minutes: 15
@@ -117,18 +139,9 @@ jobs:
         if: steps.app-cache.outputs.cache-hit != 'true'
         run: rm -rf tmp/app-cache/uploads && cp -r public/uploads tmp/app-cache/uploads
 
-      - name: Check QUnit existence
-        id: check_qunit
-        shell: bash
-        run: |
-          if [ 0 -lt $(find tmp/component/test -type f \( -name "*.js" -or -name "*.es6" \) 2> /dev/null | wc -l) ]; then
-            echo "::set-output name=files_exist::true"
-          fi
-
       - name: Component QUnit
-        if: steps.check_qunit.outputs.files_exist == 'true'
         run: |
           THEME_NAME=$(ruby -e 'require "json"; puts JSON.parse(File.read("tmp/component/about.json"))["name"]')
           bundle exec rake themes:install -- "--{\"$THEME_NAME\": \"tmp/component\"}"
-          QUNIT_EMBER_CLI=1 UNICORN_TIMEOUT=120 bundle exec rake "themes:qunit[name,$THEME_NAME]"
+          UNICORN_TIMEOUT=120 bundle exec rake "themes:qunit[name,$THEME_NAME]"
         timeout-minutes: 10