[ci] use gcc-11 on macos-12

.github/workflows/run_test.yml

@@ -89,7 +89,7 @@ jobs:
         run: |
           gcc -v
           if [ "$RUNNER_OS" == "macOS" ]; then
-              make -C src oct CC=gcc-11 CXX=g++-11 MEXLINKOPT="-static" USERLINKOPT="-v -s"
+              make -C src oct CC=gcc-11 CXX=g++-11 USERLINKOPT="-v -s"
               otool -L zipmat.mex
               #upx -9 zipmat.mex || true
           else