Update sqlalchemy requirement from <1.5,>=1.3.0 to >=1.3.0,<2.1

---
updated-dependencies:
- dependency-name: sqlalchemy
  dependency-type: direct:production
...

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pyproject.toml

@@ -45,7 +45,7 @@ dependencies = [
     "python-dateutil",
     "qrcode>=7.1,<8",
     "requests>=2.25,<3",
-    "SQLAlchemy>=1.3.0,<1.5",
+    "SQLAlchemy>=1.3.0,<2.1",
     "SQLAlchemy-Continuum>=1.3.12,<2", # New 1.4 changes API, see #728
     "Werkzeug>=2,<3",
     "WTForms>=2.3.3,<3.3",]