Allow templating for requires[].git.repo

[camwardy]

Expected behavior

Templating should work for requires[].git.repo. This field doesn't seem to support templating, as outlined in the docs: https://skaffold.dev/docs/environment/templating/. This is required to access a remote private git repository from a CI pipeline.

Actual behavior

Templating does not work for requires[].git.repo

Information

• Skaffold version: v2.4.0
• Operating system: Ubuntu 22.04.1
• Installed via: Standalone binary
• Contents of skaffold.yaml:

---
apiVersion: skaffold/v4beta4
kind: Config
metadata:
  name: my-config

requires:
  - configs:
      - my-remote-config
    git:
      repo: "https://{{.PAT}}@dev.azure.com/my-org/my-project/_git/my-remote-repo"
      path: skaffold.yaml
      sync: true
      ref: develop

Steps to reproduce the behavior

1. Store a skaffold config in a remote repository
2. Run skaffold run -m kafka while passing in a PAT env var for your repo
3. See that skaffold is not able to resolve the templated value

[aozmen121]

We've also recently come across this issue, where the requires.repo field doesn't have the ability to template the repo path.

Would anyone point us if this is a known bug? or provide a potential workaround?
@dgageot @tejal29 @balopat @aaron-prindle