Upgrade to Airflow 2.5.1, remove old warnings (#985)

pytest.ini

@@ -17,16 +17,8 @@ addopts =
     --dist loadscope
     --disable-socket
     --allow-unix-socket
-# SMTP
-#   This occurs because the default config is loaded when running `just test --extended`
-#   which happens to still have SMTP credential defaults assigned in it. We do not set
-#   these anywhere in the dev stack so it can be safely ignored.
-# distutils
+# sqlalchemy
 #   Warning in dependency, nothing we can do
-# flask
-#   Warning in dependency, nothing we can do
-#   "removed"/"remoevd" is due to https://github.com/pallets/flask/pull/4757
+#   https://docs.sqlalchemy.org/en/20/errors.html#error-b8d9
 filterwarnings=
-    ignore:Fetching SMTP credentials from configuration variables will be deprecated in a future release. Please set credentials using a connection instead:airflow.exceptions.RemovedInAirflow3Warning
-    ignore:distutils Version classes are deprecated. Use packaging.version instead:DeprecationWarning
-    ignore:.*is deprecated and will be (remoevd|removed) in Flask 2.3.:DeprecationWarning
+    ignore:.*Deprecated API features detected.*:sqlalchemy.exc.MovedIn20Warning

requirements_prod.txt

@@ -2,7 +2,7 @@
 
 # Note: Unpinned packages have their versions determined by the Airflow constraints file
 
-apache-airflow[amazon,postgres,http]==2.5.0
+apache-airflow[amazon,postgres,http]==2.5.1
 lxml
 psycopg2-binary
 requests-file==1.5.1