Ignore a certain timestamp deprecation warning in testing

Using a `pandas.Series` with Python 3.12 and pytest currently yields a
warnining deprecation warning.

Author: adamnsch

graphdatascience/tests/pytest.ini

@@ -8,3 +8,6 @@ markers =
     only_on_aura: mark a test to be run only when targeting an AuraDS instance
     ogb: mark a test as requiring the ogb dependency
     cloud_architecture: mark a test to require a cloud setup like environment
+filterwarnings =
+    error
+    ignore:datetime.datetime.utcfromtimestamp\(\) is deprecated:DeprecationWarning

tox.ini

@@ -48,12 +48,12 @@ deps =
 	networkx2: networkx >= 2.0, < 3.0
 	networkx3: networkx >= 3.0, < 4.0
 commands =
-	standard: bash -ec 'pytest graphdatascience/tests --include-enterprise --include-model-store-location -Werror && ruby ./doc/tests/test_docs.rb python3 -n test_enterprise && pytest ./doc/tests/test_client_only_endpoints.py -Werror'
-	encrypted: pytest graphdatascience/tests --encrypted-only -Werror
-	aura: pytest graphdatascience/tests --include-enterprise --target-aura -Werror
-	ogb: pytest graphdatascience/tests --include-enterprise --include-ogb -Werror
-	nx: bash -ec 'pytest graphdatascience/tests/*/test_nx_loader.py --include-enterprise -Werror && ruby ./doc/tests/test_docs.rb python3 -n test_networkx'
-	cloud-architecture: pytest graphdatascience/tests --include-cloud-architecture -Werror
+	standard: bash -ec 'pytest graphdatascience/tests --include-enterprise --include-model-store-location && ruby ./doc/tests/test_docs.rb python3 -n test_enterprise && pytest ./doc/tests/test_client_only_endpoints.py'
+	encrypted: pytest graphdatascience/tests --encrypted-only
+	aura: pytest graphdatascience/tests --include-enterprise --target-aura
+	ogb: pytest graphdatascience/tests --include-enterprise --include-ogb
+	nx: bash -ec 'pytest graphdatascience/tests/*/test_nx_loader.py --include-enterprise && ruby ./doc/tests/test_docs.rb python3 -n test_networkx'
+	cloud-architecture: pytest graphdatascience/tests --include-cloud-architecture
 	rm -rf {envdir}/lib
 
 [testenv:jupyter-notebook-ci]