Add 408s to retries to Python API Client (#2945)

* Retry on 408

See https://datatracker.ietf.org/doc/html/rfc7231#section-6.5.7 which says that clients may retry 408 requests.

---------

Co-authored-by: ci.datadog-api-spec <[email protected]>

Author: jack-edmonds-dd

.generator/src/generator/templates/rest.j2

@@ -21,7 +21,7 @@ from {{ package }}.exceptions import (
 logger = logging.getLogger(__name__)
 
 
-RETRY_AFTER_STATUS_CODES = frozenset([429, 500, 501, 502, 503, 504, 505, 506, 507, 509, 510, 511, 512])
+RETRY_AFTER_STATUS_CODES = frozenset([408, 429, 500, 501, 502, 503, 504, 505, 506, 507, 509, 510, 511, 512])
 RETRY_ALLOWED_METHODS = frozenset(["GET", "PUT", "DELETE", "POST", "PATCH"])
 
 

src/datadog_api_client/rest.py

@@ -23,7 +23,7 @@
 logger = logging.getLogger(__name__)
 
 
-RETRY_AFTER_STATUS_CODES = frozenset([429, 500, 501, 502, 503, 504, 505, 506, 507, 509, 510, 511, 512])
+RETRY_AFTER_STATUS_CODES = frozenset([408, 429, 500, 501, 502, 503, 504, 505, 506, 507, 509, 510, 511, 512])
 RETRY_ALLOWED_METHODS = frozenset(["GET", "PUT", "DELETE", "POST", "PATCH"])