[ci] Prevent ARM64 from timing out during untar

.travis.yml

@@ -10,7 +10,7 @@ before_install:
   - sudo apt-get install -y python3 python3-pip scons cmake doxygen gcc-10 g++-10 build-essential libboost-all-dev libwiringpi-dev
   - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 90 --slave /usr/bin/g++ g++ /usr/bin/g++-10 --slave /usr/bin/gcov gcov /usr/bin/gcov-10
   #- sudo apt-get install -y gcc-arm-none-eabi
-  - wget -qO- https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-aarch64-linux.tar.bz2 | tar xj -C /opt
+  - wget -qO- https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-aarch64-linux.tar.bz2 | tar xvj -C /opt
   - export PATH="/opt/gcc-arm-none-eabi-10-2020-q4-major/bin:$PATH"
   - pip3 install modm
   - export PATH="~/.local/bin:$PATH"