ci: remove py37 pdm build path

Author: wey-gu

.github/workflows/run_test.yaml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       max-parallel: 2
       matrix:
-        python-version: [3.7, 3.8, 3.9, '3.10', 3.11]
+        python-version: [3.8, 3.9, '3.10', 3.11]
 
     steps:
       - name: Maximize runner space