Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/appimage.yml

@@ -23,7 +23,7 @@ jobs:
             arch: aarch64
     container: ghcr.io/pkgforge-dev/archlinux:latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Preparing Container
         uses: pkgforge-dev/anylinux-setup-action@8872fabe63f9a00b35e25b2f46da62a05afc9a7d # v1
       - name: Install Dependencies