fix: add encodings.idna to the denylist [backport 2.10] (#9887) #54509

Job	Run time
test_unit (dd-lib-python-init-test-django)	2m 54s
test_unit (dd-lib-python-init-test-django-gunicorn)	3m 5s
test_unit (dd-lib-python-init-test-django-gunicorn-alpine)	2m 57s
test_unit (dd-lib-python-init-test-django-uvicorn)	3m 13s
build-and-publish-latest-snapshot-image	0s
test_unit (dd-lib-python-init-test-django-no-perms)	3m 14s
test_unit_no_instrumentation (dd-lib-python-init-test-django-unsupported-python)	3m 14s
test_unit (dd-lib-python-init-test-django-pre-installed)	3m 13s
test_unit_no_instrumentation (dd-lib-python-init-test-django-unsupported-package)	3m 21s
test_unit (dd-lib-python-init-test-django-unsupported-package-force)	2m 54s
build-and-publish-test-image / wait_for_package	6s
build-and-publish-test-image / build_push / build_push	12m 32s
test-runner-test (dd-lib-python-init-test-django)	4m 27s
test-runner-test (dd-lib-python-init-test-django-gunicorn)	4m 8s
test-runner-test (dd-lib-python-init-test-django-uvicorn)	4m 11s
	53m 29s

Provide feedback