Implement renovate under devfile organization

[michael-valdron]

/kind task

Which area is this issue related to?

/area ci

Issue Description

Implement the renovate bot and organization wide configuration under the devfile GitHub organization.

renovate-config.json:

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:base",
    "helpers:pinGitHubActionDigests",
    ":gitSignOff"
  ],
  "timezone": "America/Toronto",
  "enabledManagers": ["github-actions"],
  "packageRules": [
    {
      "matchManagers": ["github-actions"],
      "groupName": "github actions",
      "groupSlug": "github-actions",
      "commitMessageTopic": "{{depName}}"
    },
    {
      "description": "Schedule Konflux tekton task updates Tuesday and Thursday nights (9 PM - 12 AM)",
      "matchManagers": ["tekton"],
      "schedule": ["* 21-23 * * 2,4"]
    }
  ],
  "prHourlyLimit": 20,
  "prConcurrentLimit": 1
}

Acceptance Criteria

• Create the devfile/.github organization configuration repository
• Add organization wide renovate configuration to the devfile/.github organization configuration repository
• Add renovate bot to the devfile organization

[michael-valdron]

Add organization wide renovate configuration to the devfile organization

Organization wide configuration can be store in one of the following ways:

1. Under a repository called renovate-config with a default.json file
2. Under a repository called .github with a renovate-config.json file

I'd recommend approach 2 to create a general parent organization config repository.

[michael-valdron]

Add renovate bot to the devfile organization

Already done here: https://github.com/devfile/cloud-dev-images

[michael-valdron]

Following community cloud hosted specs: https://docs.mend.io/renovate/latest/mend-renovate-cloud-resource-tiers#MendRenovate-CloudResourceTiers-ResourcesandScheduling

Setting prConcurrentLimit to 1 instead of 10.