Add github sync for i2p-jpackage-mac

Bump dawidd6/action-download-artifact from 3 to 6 in /.github/workflows

.github/workflows/release.yml

@@ -54,7 +54,7 @@ jobs:
           sleep 1m
       - name: Download artifacts
         id: download-artifact
-        uses: dawidd6/action-download-artifact@v3
+        uses: dawidd6/action-download-artifact@v6
         with:
           skip_unpack: true
           workflow: ant.yml

.github/workflows/sync.yaml

@@ -0,0 +1,66 @@
+# GitHub Actions workflow file to sync an external repository to this GitHub mirror.
+# This file was automatically generated by go-github-sync.
+#
+# The workflow does the following:
+# - Runs on a scheduled basis (and can also be triggered manually)
+# - Clones the GitHub mirror repository
+# - Fetches changes from the primary external repository
+# - Applies those changes to the mirror repository
+# - Pushes the updated content back to the GitHub mirror
+#
+# Authentication is handled by the GITHUB_TOKEN secret provided by GitHub Actions.
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate Github Actions Environment
+        run: if [ "$GITHUB_ACTIONS" != "true" ]; then echo 'This script must be run in a GitHub Actions environment.'; exit 1; fi
+      - name: Checkout GitHub Mirror
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Configure Git
+        run: |-
+          git config user.name 'GitHub Actions'
+          git config user.email 'actions@github.com'
+      - env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        name: Sync Primary Repository
+        run: |-
+          # Add the primary repository as a remote
+          git remote add primary https://i2pgit.org/I2P_Developers/i2p-jpackage-mac.git
+
+          # Fetch the latest changes from the primary repository
+          git fetch primary
+
+          # Check if the primary branch exists in the primary repository
+          if git ls-remote --heads primary master | grep -q master; then
+            echo "Primary branch master found in primary repository"
+          else
+            echo "Error: Primary branch master not found in primary repository"
+            exit 1
+          fi
+
+          # Check if we're already on the mirror branch
+          if git rev-parse --verify --quiet master; then
+            git checkout master
+          else
+            # Create the mirror branch if it doesn't exist
+            git checkout -b master
+          fi
+
+
+          # Force-apply all changes from primary, overriding any conflicts
+          echo "Performing force sync from primary/master to master"
+          git reset --hard primary/master
+
+
+          # Push changes back to the mirror repository
+          git push origin master
+name: Sync Primary Repository to GitHub Mirror
+"on":
+  push: {}
+  schedule:
+    - cron: 0 * * * *
+  workflow_dispatch: {}