fix(metric_stats): Ignore metric stats in tests for now

[vgrozdanic]

In getsentry/relay#5097 we have removed the metric_stats completely from the relay, but it is still generated as a part of global config in Sentry. This is now preventing us to bump sentry-relay package (#99205), because the tests are failing.

Clean up plan:

• stop checking for metric_stats in test
• bump sentry-relay dependency
• remove metric_stats from sentry codebase

Code used to find the diff:

    for key, value in normalized.items():
        if value != config[key]:
            import difflib
            import pprint

            config_str = pprint.pformat(config[key], width=120, sort_dicts=True)
            value_str = pprint.pformat(value, width=120, sort_dicts=True)
            diff = "\n".join(
                difflib.unified_diff(
                    config_str.splitlines(),
                    value_str.splitlines(),
                    fromfile="config",
                    tofile="normalized",
                    lineterm="",
                )
            )
            print(f"Difference for key '{key}':\n{diff}")
            raise Exception(f"Value for key {key} is not equal to other value")

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #99276      +/-   ##
==========================================
- Coverage   81.24%   81.24%   -0.01%     
==========================================
  Files        8577     8577              
  Lines      379247   379247              
  Branches    24079    24079              
==========================================
- Hits       308135   308130       -5     
- Misses      70756    70761       +5     
  Partials      356      356