Fix arch name

Author: sinegar

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
         arch:
           - arm_arm1176jzf-s_vfp # RPi Zero
           - aarch64_cortex-a53   # RPi 3+
-          - mvebu-cortexa9
+          - arm_cortex-a9_vfpv3-d16
 
     steps:
       - uses: actions/checkout@v4