[R] lineage.xml: Specify clone-depth to 1 for prebuiltapks repo

Description

lineage.xml: Specify clone-depth to 1 for prebuiltapks repo

Issue(s)

https://gitlab.e.foundation/e/backlog/-/issues/5066

Test environment

Make a build with the following parameters:

• DEVICES: FP3
• BRANCH_NAME: v1-5066-r
• FEATURE_BRANCH: 5066-r-shallow_clone

Test procedures

• Verify that the sync runs properly
• Verify that there are no regressions with respect to building on the runners

Check list

• Self review
• Test procedure explained
• Tested on fresh install
• Tested applied as an update
• License
• Internal documentation
• User documentation