chore(llmobs): increase default write timeout [backport 2.9] (#9439) #48003

Job	Run time
test_unit (dd-lib-python-init-test-django)	3m 27s
test_unit (dd-lib-python-init-test-django-gunicorn)	3m 14s
test_unit (dd-lib-python-init-test-django-gunicorn-alpine)	3m 17s
test_unit (dd-lib-python-init-test-django-uvicorn)	3m 34s
test_unit (dd-lib-python-init-test-django-no-perms)	3m 15s
test_unit (dd-lib-python-init-test-django-pre-installed)	3m 24s
test_unit (dd-lib-python-init-test-django-unsupported-python)	3m 40s
build-and-publish-test-image / wait_for_package	8s
build-and-publish-test-image / build_push / build_push	12m 37s
test-runner-test (dd-lib-python-init-test-django)	4m 35s
test-runner-test (dd-lib-python-init-test-django-gunicorn)	4m 30s
test-runner-test (dd-lib-python-init-test-django-uvicorn)	4m 23s
	50m 4s

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