Update branch for the RStudio build config definitions

[jstourac]

No description provided.

[harshad16]

Generally, if we dont have any change between version to version, we should be fine using the older version.
we get only at fault if it references main branch which is fast moving.

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: harshad16

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [harshad16]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[jiridanek]

we get only at fault if it references main branch which is fast moving.

and if we're dealing with stable/eus and we need to patch or update something in the Dockerfile, then it's also best to have the branches lined up properly to begin with