Set prodnxsr0014-0019 role to k8s::compute

## Why

- terragrunt-enc source drifted from the live encapi ENC: it declares
  prodnxsr0014-0019 as roles::base, but live ENC already classifies them as
  roles::infra::k8s::compute (confirmed via node-lookup enc_role).
- terragrunt-enc is the single source of truth for ENC data, so the source
  must match reality.

## How

- Change prodnxsr0014-0019.main.unkin.net role from roles::base to
  roles::infra::k8s::compute, matching prodnxsr0004-0008.
- environment stays develop, consistent with the other k8s compute physicals.

config/encapi/nodes.yaml

@@ -443,20 +443,20 @@ prodnxsr0013.main.unkin.net:
   role: roles::infra::incus::node
   environment: develop
 prodnxsr0014.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop
 prodnxsr0015.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop
 prodnxsr0016.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop
 prodnxsr0017.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop
 prodnxsr0018.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop
 prodnxsr0019.main.unkin.net:
-  role: roles::base
+  role: roles::infra::k8s::compute
   environment: develop