Downgrade errors from the OpenGraph API

Description

We previously downgraded similar errors from the post metadata code, but the mobile app still uses this code path, so it can cause the server logs to be full of messages that don't need to be marked as errors.

QA Test Steps

1. On RN, make a post containing an invalid or internal URL such as `http://notarealurlatall.com/index.html`
Also test with `http://192.168.1.1/index.html` (see LM's comment below)
2. View the server logs in the system console

Expected: If you see a message like "address forbidden, you may need to set AllowedUntrustedInternalConnections to allow an integration access to your internal network", it should appear at DEBUG level, not ERROR level

Status

Mana

None

Assignee

Harrison Healey

Reporter

Harrison Healey

Epic Link

None

Mattermost Team

Apps

Sprint

None

Labels

GitHub Issue

None

QA Assignee

Steve Mudie

QA Testing Areas

Other (write in QA test steps)