fix: separate Aztec version setting and local network startup steps

Author: critesjosh

.github/workflows/local-network.yaml

@@ -40,10 +40,17 @@ jobs:
       - name: Update path
         run: echo "/home/runner/.aztec/bin" >> $GITHUB_PATH
 
-      - name: Set Aztec version and start local network
+      - name: Set Aztec version
         run: |
           VERSION=${{ env.VERSION }} aztec-up
-          aztec start --local-network &
+
+      # This is a temporary hack to fix a problem with v3 releases.
+      - name: Manually tag the aztec version as `latest`
+        run: |
+          docker tag aztecprotocol/aztec:${{ env.VERSION }} aztecprotocol/aztec:latest
+
+      - name: Start local Aztec network
+        run: aztec start --local-network &
 
       - name: Wait for local network to be ready
         run: |