Route release/deploy/manual workflows to dedicated release runner

deploy-manual, update-server, auto-release now use runs-on: release
to avoid competing with CI jobs in the general runner queue.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/auto-release.yml

@@ -53,7 +53,7 @@ permissions:
 jobs:
   release:
     name: Build & Release Pipeline
-    runs-on: ubuntu-latest
+    runs-on: release
     if: >-
       github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch'
 

.github/workflows/deploy-manual.yml

@@ -32,7 +32,7 @@ permissions:
 jobs:
   deploy:
     name: SFTP Deploy to Dev
-    runs-on: ubuntu-latest
+    runs-on: release
 
     steps:
       - name: Checkout repository

.github/workflows/update-server.yml

@@ -53,7 +53,7 @@ permissions:
 jobs:
   update-xml:
     name: Update updates.xml
-    runs-on: ubuntu-latest
+    runs-on: release
     if: >-
       github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch'