fix(pytest): use correct log level definition (SchemaStore#4612)

The [Pytest
documentation](https://docs.pytest.org/en/stable/reference/reference.html#confval-log_level)
explains that the `log_level` config variable

> Sets the minimum log message level that should be captured for logging
> capture. The integer value or the names of the levels can be used.

Furthermore, there are more named levels than the ones listed
previously:
https://github.com/python/cpython/blob/ef06508f8ef1d2943b2fb1e310ab115b65e489a8/Lib/logging/__init__.py#L98-L105

Some are deprecated/not recommended (hence marked as such), but there
was also the `NOTSET` option missing previously.

Signed-off-by: JP-Ellis <[email protected]>

Author: JP-Ellis

src/schemas/json/partial-pytest.json

@@ -420,8 +420,22 @@
       "enum": ["function", "class", "module", "package", "session"]
     },
     "LogLevel": {
-      "type": "string",
-      "enum": ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]
+      "description": "A minimum log level. Can be level name or integer value.",
+      "oneOf": [
+        {
+          "type": "integer",
+          "minimum": 0
+        },
+        {
+          "type": "string",
+          "enum": ["CRITICAL", "ERROR", "WARNING", "INFO", "DEBUG", "NOTSET"]
+        },
+        {
+          "type": "string",
+          "deprecated": true,
+          "enum": ["FATAL", "WARN"]
+        }
+      ]
     }
   }
 }