chore: Add bazzite repo to ISO Build step

.github/workflows/build_iso.yml

@@ -100,8 +100,14 @@ jobs:
             ${image} /temp_flatpak_install_dir/script.sh
           docker rmi ${image}
 
+      - name: Setup Bazzite Repo
+        id: setup-bazzite-repo
+        shell: bash
+        run: |
+          curl -Lo ${{ github.workspace }}/bazzite.repo https://copr.fedorainfracloud.org/coprs/kylegospo/bazzite/repo/fedora-${{ matrix.major_version }}/kylegospo-bazzite-fedora-${{ matrix.major_version }}.repo
+
       - name: Build ISOs
-        uses: jasonn3/build-container-installer@v1.2.1
+        uses: jasonn3/build-container-installer@main
         id: build
         with:
           arch: x86_64
@@ -119,6 +125,7 @@ jobs:
           enable_flatpak_dependencies: "false"
           extra_boot_params: ${{ steps.generate-extra-params.outputs.extra-boot-params }}
           additional_templates: '/github/workspace/installer/lorax_templates/remove_root_password_prompt.tmpl'
+          repos: '/github/workspace/bazzite.repo /etc/yum.repos.d/fedora.repo /etc/yum.repos.d/fedora-updates.repo'
 
       - name: Move ISOs to Upload Directory
         id: upload-directory