feat: add loongarch64 builds

Signed-off-by: 吴小白 <296015668@qq.com>

Author: wojiushixiaobai

.github/workflows/posix.yml

@@ -85,6 +85,14 @@ jobs:
             INTERFACE64: '1'
             MB_ML_LIBC: musllinux
             MB_ML_VER: _1_2
+          - os: ubuntu-latest
+            PLAT: loongarch64
+            INTERFACE64: '0'
+            MB_ML_VER: _2_38
+          - os: ubuntu-latest
+            PLAT: loongarch64
+            INTERFACE64: '1'
+            MB_ML_VER: _2_38
 
         exclude:
           - PLAT: i686
@@ -119,12 +127,17 @@ jobs:
       with:
         xcode-version: '14.3'
 
-    - name: Allow docker with qemu
+    - name: Allow docker with qemu on aarch64
       if: ${{ matrix.PLAT == 'aarch64' }}
       run: |
         sudo apt-get update -q -y
         sudo apt-get -qq install -y qemu qemu-user-static
         sudo docker run --rm --privileged multiarch/qemu-user-static --reset -p yes --credential yes
+    
+    - name: Allow docker with qemu on loongarch64
+      if: ${{ matrix.PLAT == 'loongarch64' }}
+      run: |
+        sudo docker run --rm --privileged ghcr.io/loong64/qemu-user-static --reset -p yes --credential yes
 
     - name: Print some Environment variable
       run: |