build AppImage on ubuntu-24.04-arm (#3681)

.github/workflows/appimage.yml

@@ -31,7 +31,7 @@ jobs:
             appimage-suffix: x86_64
             openjfx-url: 'https://download2.gluonhq.com/openjfx/22.0.2/openjfx-22.0.2_linux-x64_bin-jmods.zip'
             openjfx-sha: 'd44bff3b94d5668fdee18a938d7b1269026d663d44765f02d29a9bdfd3fa1eb0'
-          - os: [self-hosted, Linux, ARM64]
+          - os: ubuntu-24.04-arm
             appimage-suffix: aarch64
             openjfx-url: 'https://download2.gluonhq.com/openjfx/22.0.2/openjfx-22.0.2_linux-aarch64_bin-jmods.zip'
             openjfx-sha: '3d5457136690c4f5bb9522d38b45218e045bdac13c24aa4c808c7c8d17d039c7'