Test without sqlalchemy-citext

The last sqlalchemy-citext update was in 2021 and it has various
compatibility issues.

SQLAlchemy now has CITEXT support.

flask_admin/tests/sqla/test_postgres.py

@@ -1,4 +1,8 @@
-from citext import CIText
+try:
+    from citext import CIText as CITEXT
+except ImportError:
+    # SQLAlchemy >= 2.0.7, although there is an issue until 2.0.19
+    from sqlalchemy.dialects.postgresql import CITEXT  # type: ignore[attr-defined]
 from sqlalchemy import text
 from sqlalchemy.dialects.postgresql import HSTORE
 from sqlalchemy.dialects.postgresql import JSON
@@ -94,7 +98,7 @@ class CITextModel(postgres_db.Model):
             id = postgres_db.Column(
                 postgres_db.Integer, primary_key=True, autoincrement=True
             )
-            citext_test = postgres_db.Column(CIText)
+            citext_test = postgres_db.Column(CITEXT)
 
         with postgres_db.engine.begin() as connection:
             connection.execute(text("CREATE EXTENSION IF NOT EXISTS citext"))

pyproject.toml

@@ -37,7 +37,6 @@ sqlalchemy = [
 sqlalchemy-with-utils = [
     "Flask-Admin[sqlalchemy]",
     "sqlalchemy_utils>=0.38.0",
-    "sqlalchemy-citext>=1.8.0",
     "colour>=0.1.5",
     "email_validator>=2",
     "arrow>=0.13.0",

tox.ini

@@ -22,6 +22,7 @@ setenv =
     AZURE_STORAGE_CONNECTION_STRING = DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;
 deps =
     sqlalchemy1: sqlalchemy<2
+    sqlalchemy1: sqlalchemy-citext
     -r requirements/tests.txt
 commands_pre =
     noflaskbabel: pip uninstall -y flask-babel