Repo File Sync: Update to Mu DevOps v15.0.0 (#208)

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
[#15330387217](https://github.com/microsoft/mu_devops/actions/runs/15330387217)

Signed-off-by: Project Mu UEFI Bot <uefibot@microsoft.com>
Co-authored-by: mu-automation[bot] <204385837+mu-automation[bot]@users.noreply.github.com>

Author: mu-automation[bot]

.github/workflows/issue-assignment.yml

@@ -23,4 +23,4 @@ jobs:
       contents: read
       issues: write
 
-    uses: microsoft/mu_devops/.github/workflows/IssueAssignment.yml@v14.0.1
+    uses: microsoft/mu_devops/.github/workflows/IssueAssignment.yml@v15.0.0

.github/workflows/label-sync.yml

@@ -28,4 +28,4 @@ jobs:
     permissions:
       issues: write
 
-    uses: microsoft/mu_devops/.github/workflows/LabelSyncer.yml@v14.0.1
+    uses: microsoft/mu_devops/.github/workflows/LabelSyncer.yml@v15.0.0

.github/workflows/release-draft.yml

@@ -33,5 +33,5 @@ jobs:
       contents: write
       pull-requests: write
 
-    uses: microsoft/mu_devops/.github/workflows/ReleaseDrafter.yml@v14.0.1
+    uses: microsoft/mu_devops/.github/workflows/ReleaseDrafter.yml@v15.0.0
     secrets: inherit

.github/workflows/stale.yml

@@ -29,4 +29,4 @@ jobs:
       issues: write
       pull-requests: write
 
-    uses: microsoft/mu_devops/.github/workflows/Stale.yml@v14.0.1
+    uses: microsoft/mu_devops/.github/workflows/Stale.yml@v15.0.0

.github/workflows/triage-issues.yml

@@ -23,4 +23,4 @@ jobs:
     permissions:
       issues: write
 
-    uses: microsoft/mu_devops/.github/workflows/IssueTriager.yml@v14.0.1
+    uses: microsoft/mu_devops/.github/workflows/IssueTriager.yml@v15.0.0