Revert "GitHub CI: Update OpenDingux toolchains"

This reverts commit 28aa03ccf1.

The newer versions of the toolchain require glibc 2.32 but the GitHub CI
ubuntu-latest (20.04) only has glibc 2.31

.github/workflows/opendingux_release.yml

@@ -18,7 +18,7 @@ jobs:
       run: >
         sudo apt-get update &&
         sudo apt-get install -y curl cmake git squashfs-tools &&
-        curl -L http://od.abstraction.se/opendingux/toolchain/opendingux-gcw0-toolchain.2021-10-22.tar.xz -o gcw0-toolchain.tar.xz &&
+        curl -L http://od.abstraction.se/opendingux/toolchain/opendingux-gcw0-toolchain.2021-03-10.tar.xz -o gcw0-toolchain.tar.xz &&
         sudo mkdir -p /opt/gcw0-toolchain && sudo chown -R "${USER}:" /opt/gcw0-toolchain &&
         tar -C /opt -xf gcw0-toolchain.tar.xz
 
@@ -59,7 +59,7 @@ jobs:
       run: >
         sudo apt update &&
         sudo apt install -y curl cmake git squashfs-tools &&
-        curl -L http://od.abstraction.se/opendingux/toolchain/opendingux-lepus-toolchain.2021-10-22.tar.xz -o lepus-toolchain.tar.xz &&
+        curl -L http://od.abstraction.se/opendingux/toolchain/opendingux-lepus-toolchain.2021-03-11.tar.xz -o lepus-toolchain.tar.xz &&
         sudo mkdir -p /opt/lepus-toolchain && sudo chown -R "${USER}:" /opt/lepus-toolchain &&
         tar -C /opt -xf lepus-toolchain.tar.xz