Create dependabot.yaml

This PR adds a Dependabot configuration (dependabot.yml) to automatically keep GitHub Actions up to date. Enabling Dependabot helps ensure the repository remains secure, follows best practices, and stays aligned with Qualcomm engineering standards.
Key details:

Enables Dependabot for the GitHub Actions ecosystem
Scans the root directory (/) where workflows are located
Schedules checks to run daily
Automates version update PRs for workflow dependencies

This improves repository maintainability and helps proactively identify outdated or vulnerable GitHub Actions.

Signed-off-by: Sandhya Adavikolanu  <sadaviko@qti.qualcomm.com>
Signed-off-by: Sandhya Adavikolanu <sadaviko@qti.qualcomm.com>

Author: Sandhya1236

.github/dependabot.yaml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # This points to .github/workflows
+    schedule:
+      interval: "daily"