Consul reporting valid Envoy versions as "not supported"

[nathancoleman]

Overview of the Issue

Consul 1.15.0 is reporting newer releases of Envoy - 1.25.1, for example - as not supported, even though these versions are listed as valid in the compatibility matrix.

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Reproduction Steps

1. Set up Consul 1.15.0 with the latest version of Envoy, 1.25.1
2. Observe warning when attempting a command such as

   $ consul connect envoy -mesh-gateway -register -service dc1-mgw -partition=default -address x.x.x.x ...
   ...
   Envoy version 1.25.1 is not supported. If there is a reason you need to use this version of envoy use the ignore-envoy-compatibility flag. Using an unsupported version of Envoy is not recommended and your experience may vary. For more information on compatibility see https://developer.hashicorp.com/consul/docs/connect/proxies/envoy#envoy-and-consul-client-agent

Consul info for both Client and Server

Client info

Output from client 'consul info' command here

Client agent HCL config

Server info

Output from server 'consul info' command here

Server agent HCL config

Operating system and Environment details

Log Fragments

[nathancoleman]

This issue is resolved by #16491 which has merged and will be included in Consul 1.15.1