Adding pacman-key --init to ISO runner

.github/workflows/iso-build.yaml

@@ -30,6 +30,7 @@ jobs:
       - run: pwd
       - run: find .
       - run: cat /etc/os-release
+      - run: pacman-key --init
       - run: pacman --noconfirm -Sy archlinux-keyring
       - run: mkdir -p /tmp/archlive/airootfs/root/archinstall-git; cp -r . /tmp/archlive/airootfs/root/archinstall-git
       - run: echo "pip uninstall archinstall -y; cd archinstall-git; rm -rf dist; python -m build -n; pip install dist/archinstall*.whl" > /tmp/archlive/airootfs/root/.zprofile