Use a dedicated workflow for each sync type

The approach inherited from the original Bash script-based approach to syncing the repository's file duplicates was to
handle all syncing in a monolithic manner.

As I convert this to a task-based aproach, I have decided that there really isn't enough in common between the types of
files synced, nor their sync method, to justify combining them. Splitting them up allows for path filters on the workflow
triggers and more meaningful results in the event of a failure.

Author: per1234

.github/workflows/check-dependabot-sync.yml

@@ -0,0 +1,46 @@
+# This repository contains intentionally duplicated copies of template workflows under
+# workflow-templates/dependabot/workflow-template-copies used for Dependabot checks.
+#
+# This workflow checks that the copies are in sync.
+# If the workflow fails, run `task fix` and commit.
+
+name: Check Workflow Duplicates Sync
+
+on:
+  push:
+    paths:
+      - ".github/workflows/check-dependabot-sync.ya?ml"
+      - "Taskfile.yml"
+      - "workflow-templates/*.ya?ml"
+      - "workflow-templates/dependabot/workflow-template-copies/.github/workflows/*"
+  pull_request:
+    paths:
+      - ".github/workflows/check-dependabot-sync.ya?ml"
+      - "Taskfile.yml"
+      - "workflow-templates/*.ya?ml"
+      - "workflow-templates/dependabot/workflow-template-copies/.github/workflows/*"
+
+jobs:
+  check-sync:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Sync workflows
+        run: task --silent dependabot:sync
+
+      - name: Check workflow duplicates sync
+        run: |
+          git add .
+          if ! git diff --color --exit-code HEAD; then
+            echo "::error::Workflow duplicates are out of sync. Please run \"task fix\""
+            exit 1
+          fi

.github/workflows/check-sync.yml

@@ -2,7 +2,7 @@
 
 [![Check Configuration Files status](https://github.com/arduino/tooling-project-assets/actions/workflows/check-configuration-files.yml/badge.svg)](https://github.com/arduino/tooling-project-assets/actions/workflows/check-configuration-files.yml)
 [![Check License status](https://github.com/arduino/tooling-project-assets/actions/workflows/check-license.yml/badge.svg)](https://github.com/arduino/tooling-project-assets/actions/workflows/check-license.yml)
-[![Check File Duplicates Sync status](https://github.com/arduino/tooling-project-assets/actions/workflows/check-sync.yml/badge.svg)](https://github.com/arduino/tooling-project-assets/actions/workflows/check-sync.yml)
+[![Check Workflow Duplicates Sync status](https://github.com/arduino/tooling-project-assets/actions/workflows/check-dependabot-sync.yml/badge.svg)](https://github.com/arduino/tooling-project-assets/actions/workflows/check-dependabot-sync.yml)
 
 The [Arduino](https://www.arduino.cc/) Tooling Team's collection of reusable project infrastructure assets.