Start file sync for secureboot_objects repo (#285)

Adding a first pass of filesync for the secureboot_objects repo. 

@makubacki @Flickdm 
Please verify that all necessary files are being sycned in this PR.

.sync/Files.yml

@@ -79,6 +79,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # CI Configuration - Markdown Lint - Mu Documentation Repo Settings
   - files:
@@ -124,6 +125,7 @@ group:
       microsoft/mu_silicon_arm_tiano
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # dependabot - Track GitHub Actions, PIP Modules, and Git Submodules
   - files:
@@ -195,6 +197,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # GitHub Templates - Licensing - Project Mu License
   - files:
@@ -401,6 +404,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # Leaf Workflow - Label Sync
   - files:
@@ -425,6 +429,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # Leaf Workflow - Mark Stale Issues and Pull Requests
   - files:
@@ -448,6 +453,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # Leaf Workflow - Mark Stale Issues and Pull Requests (Mu DevOps Adjustment)
 # Prevents the reusable workflow file from being overwritten by the leaf workflow
@@ -502,6 +508,7 @@ group:
       microsoft/mu_feature_uefi_variable
       microsoft/mu_rust_hid
       microsoft/mu_tiano_platforms
+      microsoft/secureboot_objects
 
 # Leaf Workflow - Release Draft
 # Note: This group has two files synced that allow separate configuration for
@@ -554,6 +561,7 @@ group:
       microsoft/mu_silicon_intel_tiano
       microsoft/mu_tiano_platforms
       microsoft/mu_tiano_plus
+      microsoft/secureboot_objects
 
 # Leaf Workflow - Submodule Release Update
   - files: