Drop support for old framework versions

[sentrivana]

Once #4999 is done, go through our integrations and see which legacy versions we can drop.

POTel PR: #4246 (get inspired but see if there's anything else that makes sense to drop)

[linear]

PY-1926

[ulgens]

Is there a support policy defining a cut-off value for how old a framework version should be before losing support?