chore: rm schedule triggers from security alert burndown campaign workers (#11993)

Author: Copilot

.github/workflows/code-scanning-fixer.lock.yml

@@ -2,7 +2,6 @@
 name: Code Scanning Fixer
 description: Automatically fixes critical and high severity code scanning alerts by creating pull requests with remediation
 on:
-  schedule: every 30m
   workflow_dispatch:
   skip-if-match: 'is:pr is:open in:title "[code-scanning-fix]"'
 permissions:

.github/workflows/code-scanning-fixer.md

@@ -2,7 +2,6 @@
 name: Dependabot Bundler
 description: Bundles Dependabot security alert updates per package.json into a single PR
 on:
-  schedule: every 6h
   workflow_dispatch:
   skip-if-match: 'is:pr is:open in:title "[dependabot-bundle]"'
 permissions:

.github/workflows/dependabot-bundler.lock.yml

@@ -2,7 +2,6 @@
 name: Secret Scanning Triage
 description: Triage secret scanning alerts and either open an issue (rotation/incident) or a PR (test-only cleanup)
 on:
-  schedule: every 6h
   workflow_dispatch:
 permissions:
   contents: read

.github/workflows/dependabot-bundler.md

@@ -2,7 +2,6 @@
 name: Security Fix PR
 description: Identifies and automatically fixes code security issues by creating autofixes via GitHub Code Scanning
 on:
-  schedule: every 4h
   workflow_dispatch:
     inputs:
       security_url: