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
@@ -120,12 +128,19 @@ jobs:
         xcode-version: '14.3'
 
     - name: Allow docker with qemu
-      if: ${{ matrix.PLAT == 'aarch64' }}
+      if: contains(fromJson('["aarch64", "loongarch64"]'), matrix.PLAT)
       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
-
+        case ${{ matrix.PLAT }} in
+          aarch64)
+            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
+            ;;
+          loongarch64)
+            sudo docker run --rm --privileged ghcr.io/loong64/qemu-user-static --reset -p yes --credential yes
+            ;;
+        esac
+  
     - name: Print some Environment variable
       run: |
         echo "PLAT: ${PLAT}"
@@ -170,6 +185,9 @@ jobs:
         else
           libc=${MB_ML_LIBC:-manylinux}
           docker_image=quay.io/pypa/${libc}${MB_ML_VER}_${PLAT}
+          if [ "${{ matrix.PLAT }}" == "loongarch64" ]; then
+            docker_image=ghcr.io/loong64/${libc}${MB_ML_VER}_${PLAT}
+          fi
           docker run --rm -e INTERFACE64="${INTERFACE64}" \
             -e MB_ML_LIBC="${MB_ML_LIBC}" \
             -v $(pwd):/openblas $docker_image \