refactor: Refactor http_status_to_canonical_code method

[codeboten]

The following method is is found in multiple places:

opentelemetry-python/ext/opentelemetry-ext-wsgi/src/opentelemetry/ext/wsgi/__init__.py

Lines 90 to 118 in 28ee03f

	def http_status_to_canonical_code(code: int, allow_redirect: bool = True):
	# pylint:disable=too-many-branches,too-many-return-statements
	if code < 100:
	return StatusCanonicalCode.UNKNOWN
	if code <= 299:
	return StatusCanonicalCode.OK
	if code <= 399:
	if allow_redirect:
	return StatusCanonicalCode.OK
	return StatusCanonicalCode.DEADLINE_EXCEEDED
	if code <= 499:
	if code == 401: # HTTPStatus.UNAUTHORIZED:
	return StatusCanonicalCode.UNAUTHENTICATED
	if code == 403: # HTTPStatus.FORBIDDEN:
	return StatusCanonicalCode.PERMISSION_DENIED
	if code == 404: # HTTPStatus.NOT_FOUND:
	return StatusCanonicalCode.NOT_FOUND
	if code == 429: # HTTPStatus.TOO_MANY_REQUESTS:
	return StatusCanonicalCode.RESOURCE_EXHAUSTED
	return StatusCanonicalCode.INVALID_ARGUMENT
	if code <= 599:
	if code == 501: # HTTPStatus.NOT_IMPLEMENTED:
	return StatusCanonicalCode.UNIMPLEMENTED
	if code == 503: # HTTPStatus.SERVICE_UNAVAILABLE:
	return StatusCanonicalCode.UNAVAILABLE
	if code == 504: # HTTPStatus.GATEWAY_TIMEOUT:
	return StatusCanonicalCode.DEADLINE_EXCEEDED
	return StatusCanonicalCode.INTERNAL
	return StatusCanonicalCode.UNKNOWN

We should refactor it to make it available to all future instrumentation.