hotfix(ci): install libarchive-tools for Linux package verification

The verify:linux step requires bsdtar (from libarchive-tools) to verify
AppImage contents. This was missing from the CI runners, causing beta
releases to fail with "bsdtar not available" error.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: AndyMik90

.github/workflows/beta-release.yml

@@ -405,11 +405,11 @@ jobs:
       - name: Setup Node.js and install dependencies
         uses: ./.github/actions/setup-node-frontend
 
-      - name: Setup Flatpak
+      - name: Setup Flatpak and verification tools
         run: |
           set -e
           sudo apt-get update
-          sudo apt-get install -y flatpak flatpak-builder
+          sudo apt-get install -y flatpak flatpak-builder libarchive-tools
           flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
           flatpak install -y --user flathub org.freedesktop.Platform//25.08 org.freedesktop.Sdk//25.08
           flatpak install -y --user flathub org.electronjs.Electron2.BaseApp//25.08

.github/workflows/release.yml

@@ -344,10 +344,10 @@ jobs:
       - name: Setup Node.js and install dependencies
         uses: ./.github/actions/setup-node-frontend
 
-      - name: Setup Flatpak
+      - name: Setup Flatpak and verification tools
         run: |
           sudo apt-get update
-          sudo apt-get install -y flatpak flatpak-builder
+          sudo apt-get install -y flatpak flatpak-builder libarchive-tools
           flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
           flatpak install -y --user flathub org.freedesktop.Platform//25.08 org.freedesktop.Sdk//25.08
           flatpak install -y --user flathub org.electronjs.Electron2.BaseApp//25.08