Change CloudFront HTTP version to HTTP2/3

Author: DarthSim

CHANGELOG.md

@@ -4,6 +4,7 @@
 ### Changed
 - Updated the EC2 image ID to the latest Bottlerocket variant.
 - Added C8g instances to the `ClusterInstanceType` parameter values.
+- Changed CloudFront HTTP version to HTTP2/3.
 
 ### Fixed
 - Added `should-wait = true` to the EC2 instance configuration so it doesn't register itself in the ECS cluster while in warm pool.

template.py

@@ -1490,6 +1490,7 @@ class CustomPlacementGroup(cloudformation.AWSCustomObject):
     Condition=deploy_cloudfront,
     DistributionConfig=cloudfront.DistributionConfig(
       Enabled=True,
+      HttpVersion="http2and3",
       Origins=[cloudfront.Origin(
         DomainName=GetAtt(load_balancer, "DNSName"),
         Id=Join("-", [StackName, "origin"]),