Index on pantheon recipe is served on 449, not 8983

[generalredneck]

Re-Reporting lando/lando#1840 over here since this recipe is now decoupled.
It was closed as stale, but still an issue. This could also be fixed by documenting a guide in the Pantheon section of the lando documentation explaining the settings you need to change to make this work. There is a minor bit of documentation in the recipe's Environment Variable documentation, but that's all I've been able to find.

This is minor but a thing

Tell us about your setup

Ubuntu 18.04 V3.0.0-rc21

Tell us about your .lando.yml

name: website
recipe: pantheon
config:
  framework: drupal8
  site: website
  id: abcdef98-5374-4798-8843-dc97b55c06da

Tell us about the command you were running

lando start
lando info

Tell us generally about your bug

Lando falsely reports the index container in a pantheon recipe as being served from port 8983. it is actually served from 449.

  {
    service: 'index',
    urls: [
      'http://localhost:33053'
    ],
    type: 'solr',
    core: 'not supported',
    internal_connection: {
      host: 'index',
      port: '8983'
    },
    external_connection: {
      host: 'localhost',
      port: '33053'
    },
    config: {},
    version: 'custom',
    meUser: 'solr',
    hostnames: [
      'index.website.internal'
    ]
  }

see:

pantheon/recipes/pantheon/3.6-solr/server.xml

Line 20 in da6b552

port="449" maxThreads="200"

pantheon/recipes/pantheon/3.6-solr/Dockerfile

Line 44 in da6b552

EXPOSE 449