CI: inherit renovate.json from an organization-level preset

[thypon]

Description

Following up on this renovate thread https://bravesoftware.slack.com/archives/C02QUN5HRRT/p1694609853859119
brave-browser and brave-core should inherit renovate.json base config from an organization level preset hosted at https://github.com/brave/renovate-config

https://docs.renovatebot.com/config-presets/#organization-level-presets

Steps to Reproduce

N/A CI Concern

Actual result:

N/A

Expected result:

N/A

Reproduces how often:

N/A

Desktop Brave version:

N/A

Android Device details:

• Install type (ARM, x86): N/A
• Device type (Phone, Tablet, Phablet): N/A
• Android version: N/A

Version/Channel Information:

• Can you reproduce this issue with the current release? N/A
• Can you reproduce this issue with the beta channel? N/A
• Can you reproduce this issue with the nightly channel? N/A

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? N/A
• Does the issue resolve itself when disabling Brave Rewards? N/A
• Is the issue reproducible on the latest version of Chrome? N/A

Miscellaneous Information:

CI concern

[thypon]

brave/brave-core@e3a8c0e