Update action pins to checkout v7 and fork-sync v3.4.3

Author: burner1024

.github/workflows/sync-upstream.yml

@@ -12,14 +12,14 @@ jobs:
     name: Sync master with upstream/master
     steps:
       - name: Checkout master
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           ref: master
           token: ${{ secrets.SYNC_WORKFLOW_TOKEN }}
 
       - name: Pull (Fast-Forward) upstream changes
         id: sync-master
-        uses: aormsby/Fork-Sync-With-Upstream-action@v3.4.1
+        uses: aormsby/Fork-Sync-With-Upstream-action@v3.4.3
         with:
           upstream_sync_repo: sfall-team/sfall
           upstream_sync_branch: master
@@ -33,15 +33,15 @@ jobs:
     name: Sync better-docs with upstream/master
     steps:
       - name: Checkout better-docs
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           ref: better-docs
           token: ${{ secrets.SYNC_WORKFLOW_TOKEN }}
           fetch-depth: 0
 
       - name: Pull (Fast-Forward) upstream changes (better-docs)
         id: sync-better-docs
-        uses: aormsby/Fork-Sync-With-Upstream-action@v3.4
+        uses: aormsby/Fork-Sync-With-Upstream-action@v3.4.3
         with:
           upstream_sync_repo: sfall-team/sfall
           upstream_sync_branch: master