try updating github action to have more meaningful labels and not try the matrix if psalm/format fail

.github/workflows/php.yml

@@ -3,7 +3,30 @@ name: GitHubBuild
 on: [push]
 
 jobs:
-  build:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: 7.4
+        tools: composer
+
+    - name: check composer 
+      run: composer validate
+
+    - name: Install dependencies
+      run: composer install --prefer-dist -n
+
+    - name: check formatting
+      run: composer check-format
+
+    - name: psalm static analysis
+      run: composer psalm
+
+  testsuite:
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -18,9 +41,6 @@ jobs:
         php-version: ${{ matrix.php-versions }}
         tools: composer
 
-    - name: Validate composer.json and composer.lock
-      run: composer validate
-
     - name: setup templates_c
       run: mkdir templates_c || true
 
@@ -31,17 +51,9 @@ jobs:
       run: composer install --prefer-dist -n
 
     - name: Build/test
-      run: composer build
+      run: composer test
 
-    - name: build coveralls coverage
+  build_coverage_report:
-      run: php -m xdebug.mode=coverage vendor/bin/phpunit tests
-
-    - name: Coveralls
-      run: vendor/bin/php-coveralls ./clover.xml || true
-      env:
-        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
-
-  post_build:
     needs: [build]
     runs-on: ubuntu-latest
     steps: