Record number of dropped spans in POTel

[sentrivana]

Closes #4067

Possible follow-up: #4103

[codecov]

❌ 139 Tests Failed:

Tests completed	Failed	Passed	Skipped
20479	139	20340	4568

View the top 3 failed test(s) by shortest run time

 tests.integrations.celery.integration_tests.test_celery_beat_cron_monitoring

Stack Traces | 0s run time

.../hostedtoolcache/Python/3.7.17.../x64/lib/python3.7/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1006: in _gcd_import
    ???
<frozen importlib._bootstrap>:983: in _find_and_load
    ???
<frozen importlib._bootstrap>:953: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:219: in _call_with_frames_removed
    ???
<frozen importlib._bootstrap>:1006: in _gcd_import
    ???
<frozen importlib._bootstrap>:983: in _find_and_load
    ???
<frozen importlib._bootstrap>:967: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:677: in _load_unlocked
    ???
<frozen importlib._bootstrap_external>:728: in exec_module
    ???
<frozen importlib._bootstrap>:219: in _call_with_frames_removed
    ???
.../celery/integration_tests/__init__.py:7: in <module>
    from celery.beat import Scheduler
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/celery/beat.py:22: in <module>
    from . import __version__, platforms, signals
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/celery/signals.py:14: in <module>
    from .utils.dispatch import Signal
.tox/py3.7-celery-v5.0.5/lib/python3.7.../celery/utils/__init__.py:16: in <module>
    from .nodenames import nodename, nodesplit, worker_direct
.tox/py3.7-celery-v5.0.5/lib/python3.7.../celery/utils/nodenames.py:6: in <module>
    from kombu.entity import Exchange, Queue
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/kombu/entity.py:7: in <module>
    from .serialization import prepare_accept_content
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/kombu/serialization.py:440: in <module>
    for ep, args in entrypoints('kombu.serializers'):  # pragma: no cover
.tox/py3.7-celery-v5.0.5/lib/python3.7.../kombu/utils/compat.py:82: in entrypoints
    for ep in importlib_metadata.entry_points().get(namespace, [])
E   AttributeError: 'EntryPoints' object has no attribute 'get'

 tests.integrations.celery.test_celery

Stack Traces | 0s run time

ImportError while importing test module '.../integrations/celery/test_celery.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/_pytest/python.py:617: in _importtestmodule
    mod = import_path(self.path, mode=importmode, root=self.config.rootpath)
.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/_pytest/pathlib.py:567: in import_path
    importlib.import_module(module_name)
.../hostedtoolcache/Python/3.7.17.../x64/lib/python3.7/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1006: in _gcd_import
    ???
<frozen importlib._bootstrap>:983: in _find_and_load
    ???
<frozen importlib._bootstrap>:967: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:677: in _load_unlocked
    ???
.tox/py3.7-celery-v5.0.5/lib/python3.7.../_pytest/assertion/rewrite.py:186: in exec_module
    exec(co, module.__dict__)
.../integrations/celery/test_celery.py:6: in <module>
    from celery import Celery, VERSION
E   ImportError: cannot import name 'Celery' from 'celery' (.../sentry-python/sentry-python/.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/celery/__init__.py)

 tests.integrations.celery.test_update_celery_task_headers

Stack Traces | 0s run time

.../integrations/celery/beat.py:28: in <module>
    from celery import Task, Celery  # type: ignore
E   ImportError: cannot import name 'Task' from 'celery' (.../sentry-python/sentry-python/.tox/py3.7-celery-v5.0.5/lib/python3.7.../site-packages/celery/__init__.py)

During handling of the above exception, another exception occurred:
.../integrations/celery/test_update_celery_task_headers.py:7: in <module>
    from sentry_sdk.integrations.celery import _update_celery_task_headers
.../integrations/celery/__init__.py:9: in <module>
    from sentry_sdk.integrations.celery.beat import (
.../integrations/celery/beat.py:37: in <module>
    raise DidNotEnable("Celery not installed")
E   sentry_sdk.integrations.DidNotEnable: Celery not installed

To view more test analytics, go to the Test Analytics Dashboard
_{📋 Got 3 mins? Take this short survey to help us improve Test Analytics.}