Update php.yml

Author: jb-lopez

.github/workflows/php.yml

@@ -11,12 +11,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [7.0, 7.1, 7.2, 7.3, 7.4]
+        php: [7.1, 7.2, 7.3, 7.4]
     steps:
     - uses: actions/checkout@v1
     - uses: shivammathur/setup-php@v2
       with:
         php-version: ${{ matrix.php }}
+    - name: Update PECL
+      run: pecl channel-update pecl.php.net
     - name: Install ext-trader
       run: pecl install trader
     - name: Install Composer dependencies