tests: Test all combinations of Go and PostgreSQL

Author: kyleconroy

.github/workflows/ci.yml

@@ -21,8 +21,8 @@ jobs:
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
     strategy:
       matrix:
-        go: ['1.17', '1.16', '1.15', '1.14', '1.13']
-        postgres: ['11', '10']
+        go: ['1.13', '1.14', '1.15', '1.16', '1.17']
+        postgres: ['9.6', '10', '11', '12', '13']
     steps:
     - uses: actions/[email protected]
     - uses: actions/setup-go@v2