Bump pytest from 7.2.2 to 7.3.0 (#313)

Author: daniel-zullo-frequenz

pyproject.toml

@@ -69,7 +69,7 @@ nox = [
     "toml == 0.10.2",
 ]
 pytest = [
-    "pytest == 7.2.2",
+    "pytest == 7.3.0",
     "pytest-cov == 4.0.0",
     "pytest-mock == 3.10.0",
     "pytest-asyncio == 0.21.0",