Automatic updates do not work due to upstream's creative dependency vendoring

[iwahbe]

The main issue is that oci has to be updated manually now due to this change - they're vendoring one of their SDKs, and have since made edits to the vendored code. Updates need to be run manually when they have changed their code.

(taken from internal slack)

Related to:

• Automatic inheritance of upstream go mod replaces upgrade-provider#299 (this won't actually apply to OCI, but they are spiritually similar)