Address bit rot in archiver code

[danielballan]

Observed in CI:

databroker/eventsource/tests/test_archiver.py:10: in <module>
    import vcr as _vcr
/opt/hostedtoolcache/Python/3.7.16/x64/lib/python3.7/site-packages/vcr/__init__.py:2: in <module>
    from .config import VCR
/opt/hostedtoolcache/Python/3.7.16/x64/lib/python3.7/site-packages/vcr/config.py:11: in <module>
    from .cassette import Cassette
/opt/hostedtoolcache/Python/3.7.16/x64/lib/python3.7/site-packages/vcr/cassette.py:12: in <module>
    from .patch import CassettePatcherBuilder
/opt/hostedtoolcache/Python/3.7.16/x64/lib/python3.7/site-packages/vcr/patch.py:41: in <module>
    _VerifiedHTTPSConnection = cpool.VerifiedHTTPSConnection
E   AttributeError: module 'urllib3.connectionpool' has no attribute 'VerifiedHTTPSConnection'

[danielballan]

Fixed upstream: kevin1024/vcrpy#688