Move system includes to beginning of file in packed cc-runtime

Author: mintsuki

.github/workflows/pack.yml

@@ -17,7 +17,10 @@ jobs:
         run: |
           set -e
           cat assembly.h int_endianness.h int_types.h int_lib.h int_util.h *.inc *.c > /tmp/cc-runtime.c
-          sed -i '/#include "/d' /tmp/cc-runtime.c
+          grep '#include <' /tmp/cc-runtime.c > /tmp/saved-includes
+          sed -i '/#include/d' /tmp/cc-runtime.c
+          cat /tmp/saved-includes /tmp/cc-runtime.c > /tmp/cc-runtime.c.tmp
+          mv /tmp/cc-runtime.c.tmp /tmp/cc-runtime.c
 
       - name: Push packed cc-runtime
         run: |