build: add loongarch64 target

Author: Azathothas

.github/workflows/nightly.yaml

@@ -28,18 +28,22 @@ jobs:
       fail-fast: false
       matrix:
         build:
-          - {
-              NAME: x86_64-linux,
-              TARGET: x86_64-unknown-linux-musl,
-            }
           - {
               NAME: aarch64-linux,
               TARGET: aarch64-unknown-linux-musl,
             }
+          - {
+              NAME: loongarch64-linux,
+              TARGET: loongarch64-unknown-linux-musl
+            }
           - {
               NAME: riscv64-linux,
               TARGET: riscv64gc-unknown-linux-musl
             }
+          - {
+              NAME: x86_64-linux,
+              TARGET: x86_64-unknown-linux-musl,
+            }
     steps:
       - name: Checkout
         uses: actions/checkout@v4