bump arm cortex size test (pytorch#16134)

after
pytorch@42e3222

Fail 135776 > 135768

Author: lucylq

.github/workflows/trunk.yml

@@ -381,7 +381,7 @@ jobs:
         elif [[ ${{ matrix.os}} == "zephyr-preset" ]]; then
           setup_script_args="--target-toolchain zephyr"
           toolchain_prefix=arm-zephyr-eabi-
-          threshold="135768" # 136 KiB
+          threshold="136000" # 136 KiB
           toolchain_cmake=examples/zephyr/x86_64-linux-arm-zephyr-eabi-gcc.cmake
         else
           echo "Fail unsupport OS selection ${{ matrix.os }}"