test: add SA 2.0 to test matrix (#693)

Author: kvesteri

.github/workflows/test.yaml

@@ -7,7 +7,7 @@ jobs:
       matrix:
         os: ['ubuntu-latest']
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
-        tox_env: ['sqlalchemy14']
+        tox_env: ['sqlalchemy14', 'sqlalchemy2']
         include:
           # Test against Python 3.7 and sqlalchemy 1.3
           - os: 'ubuntu-20.04'

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{37, 38, 39, 310, 311}-sqlalchemy{13, 14}
+    py{37, 38, 39, 310, 311}-sqlalchemy{13, 14, 2}
     flake8
     isort
 
@@ -12,6 +12,7 @@ deps =
     pytest-cov
     sqlalchemy13: SQLAlchemy[postgresql_pg8000]>=1.3,<1.4
     sqlalchemy14: SQLAlchemy>=1.4,<1.5
+    sqlalchemy2: SQLAlchemy>=2
     ; It's sometimes necessary to test against specific sqlalchemy versions
     ; to verify bug or feature behavior before or after a specific version.
     ;