Repo File Sync: Exclude CONFIG and MM_SUPV submodules from dependabot (#562)

synced local file(s) with
[microsoft/mu_devops](https://github.com/microsoft/mu_devops).

🤖: View the [Repo File Sync Configuration
File](https://github.com/microsoft/mu_devops/blob/main/.sync/Files.yml)
to see how files are synced.

---

This PR was created automatically by the
[repo-file-sync-action](https://github.com/BetaHuhn/repo-file-sync-action)
workflow run
[#5066737382](https://github.com/microsoft/mu_devops/actions/runs/5066737382)

Signed-off-by: Project Mu UEFI Bot <uefibot@microsoft.com>

.github/dependabot.yml

@@ -54,7 +54,9 @@ updates:
     rebase-strategy: "disabled"
     ignore:
       - dependency-name: "MU_BASECORE"
+      - dependency-name: "Features/CONFIG"
       - dependency-name: "Features/DFCI"
+      - dependency-name: "Features/MM_SUPV"
 
   - package-ecosystem: "pip"
     directory: "/"