Add apt-get update step to permaweb deployment workflow

Adds missing apt-get update step before installing misc dependencies to match the pattern used in pages-deployment.yaml workflow.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: LeonmanRolls

.github/workflows/permaweb-deployment.yaml

@@ -21,6 +21,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Update apt-get
+        run: sudo apt-get update
+
       - name: Install Misc. Deps
         run: sudo apt-get install -y libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++