fix(event_handler): make invalid chars a raw str to fix DeprecationWarning (#2982)

Author: rubenfonseca

aws_lambda_powertools/event_handler/api_gateway.py

@@ -43,7 +43,7 @@
 _DYNAMIC_ROUTE_PATTERN = r"(<\w+>)"
 _SAFE_URI = "-._~()'!*:@,;="  # https://www.ietf.org/rfc/rfc3986.txt
 # API GW/ALB decode non-safe URI chars; we must support them too
-_UNSAFE_URI = "%<> \[\]{}|^"  # noqa: W605
+_UNSAFE_URI = r"%<> \[\]{}|^"
 _NAMED_GROUP_BOUNDARY_PATTERN = rf"(?P\1[{_SAFE_URI}{_UNSAFE_URI}\\w]+)"
 _ROUTE_REGEX = "^{}$"
 

tests/unit/data_classes/test_api_gateway_authorizer.py

@@ -31,7 +31,7 @@ def test_authorizer_response_invalid_verb(builder: APIGatewayAuthorizerResponse)
 
 
 def test_authorizer_response_invalid_resource(builder: APIGatewayAuthorizerResponse):
-    with pytest.raises(ValueError, match="Invalid resource path: \$."):  # noqa: W605
+    with pytest.raises(ValueError, match=r"Invalid resource path: \$."):
         # GIVEN an invalid resource path "$"
         # WHEN calling deny_method
         builder.deny_route(http_method=HttpVerb.GET.value, resource="$")