chore: change invalid log level message

Signed-off-by: Thomas Cardonne <thomas.cardonne@adevinta.com>

packages/backend-defaults/src/entrypoints/rootLogger/config.test.ts

@@ -69,7 +69,7 @@ describe('getRootLoggerConfig', () => {
     expect(() =>
       getRootLoggerConfig(mockServices.rootConfig({ data: config })),
     ).toThrow(
-      "Invalid config at backend.logger.overrides[0].level, 'invalid' is not a valid Winston npm logging level",
+      "Invalid config at backend.logger.overrides[0].level, 'invalid' is not a valid logging level, must be one of 'error', 'warn', 'info' or 'debug'.",
     );
   });
 });

packages/backend-defaults/src/entrypoints/rootLogger/config.ts

@@ -32,7 +32,7 @@ export const getRootLoggerConfig = (
     const overrideLevel = override.getString('level');
     if (winstonLevels[overrideLevel] === undefined) {
       throw new Error(
-        `Invalid config at backend.logger.overrides[${i}].level, '${overrideLevel}' is not a valid Winston npm logging level`,
+        `Invalid config at backend.logger.overrides[${i}].level, '${overrideLevel}' is not a valid logging level, must be one of 'error', 'warn', 'info' or 'debug'.`,
       );
     }