Run compiled tests on earliest Python version (3.6) (#10349)

Related: #10345

Author: TH3CHARLie

.travis.yml

@@ -24,14 +24,14 @@ env:
 jobs:
   fast_finish: true
   include:
-  - name: "run test suite with python 3.6"
+  - name: "run test suite with python 3.6 (compiled with mypyc)"
     python: 3.6    # 3.6.3  pip  9.0.1
-  - name: "run test suite with python 3.7 (compiled with mypyc)"
-    python: 3.7
     env:
     - TOXENV=py
     - EXTRA_ARGS="-n 2"
     - TEST_MYPYC=1
+  - name: "run test suite with python 3.7"
+    python: 3.7
   - name: "run test suite with python 3.8"
     python: 3.8
   - name: "run test suite with python 3.9 (compiled with mypyc)"