AWS notification about new IAM policies for EC2 CreateSecurityGroup API

I'm having troubles understanding what's happening with an email sent by AWS about "[Action Required] Update Allow IAM policies for EC2 CreateSecurityGroup API by June 30, 2024. [AWS Account: xxxxxxx] [US-EAST-2]"

for those who have received could you please exmplain better what we shall do ? they said to replace vpc arn arn:aws:ec2:ExampleRegion:ExampleVpcParticipant:vpc/ExampleVpcId to *arn:aws:ec2:ExampleRegion:ExampleVpcOwner:vpc/ExampleVpcId * but they did not provide an example of what ExampleVpcParticipant and ExampleVpcOwner could be.

all my IAM policies that include a vpc arn are in format of "arn:aws:ec2::xxxxxxx:vpc/" where xxxxxxx is the account ID, so what's wrong with it ?

on the AWS health dashboard, the affected resources redirects me to https://console.aws.amazon.com/vpc/home?region=us-east-2, not to a specific VPC nor to a specific IAM policy. so it's very confusing to understand what's the problem.