Ignore Django instrumentation from older versions (#859)

* Ignore Django instrumentation from older versions

* Ignore Django instrumentation from older versions

* Fix text concatenation

* Update newrelic/hooks/framework_django.py

Co-authored-by: Hannah Stepanek <hstepanek@newrelic.com>

* Update newrelic/hooks/framework_django.py

Co-authored-by: Hannah Stepanek <hstepanek@newrelic.com>

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Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Hannah Stepanek <hstepanek@newrelic.com>