Add php 5.x to test matrix

Author: glensc

.github/workflows/tests-mongodb.yml

@@ -18,6 +18,14 @@ jobs:
           - "7.3"
           - "7.4"
         include:
+          - php: "5.3"
+            phpunit: "4"
+          - php: "5.4"
+            phpunit: "4"
+          - php: "5.5"
+            phpunit: "4"
+          - php: "5.6"
+            phpunit: "4"
           - php: "7.0"
             phpunit: "6"