Add Consul 1.14.0 known issue. (#15469)

Co-authored-by: R.B. Boyer <4903+rboyer@users.noreply.github.com>

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## 1.14.0 (November 15, 2022)
 
+KNOWN ISSUES:
+
+* cli: `consul connect envoy` incorrectly enables TLS for gRPC connections when the HTTP API is TLS-enabled.
+
 BREAKING CHANGES:
 
 * config: Add new `ports.grpc_tls` configuration option.

website/content/docs/upgrading/upgrade-specific.mdx

@@ -29,6 +29,12 @@ earlier. If you operate Consul service mesh using Nomad 1.4.2 or earlier, do not
 [hashicorp/nomad#15266](https://github.com/hashicorp/nomad/issues/15266) is
 fixed.
 
+For 1.14.0, there is a known issue with `consul connect envoy`. If the command is configured
+to use TLS for contacting the HTTP API, it will also incorrectly enable TLS for gRPC.
+Users should not upgrade to 1.14.0 if they are using plaintext gRPC connections in
+conjunction with TLS-encrypted HTTP APIs.
+
+
 #### Changes to gRPC TLS configuration
 
 **Make configuration changes** if using [`ports.grpc`](/docs/agent/config/config-files#grpc_port) in conjunction with any of the following settings that enables encryption: