Include a newer version of justfile in github actions

Author: andyquinterom

.github/workflows/main.yml

@@ -32,7 +32,9 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y musl-tools just
+          sudo apt-get install -y musl-tools
+
+      - uses: extractions/setup-just@v3
 
       - name: Build .deb package
         run: just build-deb