update travis with ARM<

.travis.yml

@@ -1,43 +1,31 @@
 language: cpp
 
-matrix:
+jobs:
   include:
     - os: linux
-      dist: bionic
-      sudo: required
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-8
-      env:
-         - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
-         - TYPE=Debug
+      dist: focal
+      env: TYPE=Debug
 
     - os: linux
-      dist: bionic
-      sudo: required
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-8
-      env:
-         - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
-         - TYPE=Release
+      dist: focal
+      env: TYPE=Release
+
+    - os: linux
+      arch: arm64
+      dist: focal
+      env: TYPE=Debug
+
+    - os: linux
+      arch: arm64
+      dist: focal
+      env: TYPE=Release
 
     - os: osx
-      sudo: required
-      env: 
-        - TYPE=Release
+      env: TYPE=Release
 
     - os: osx
-      sudo: required
-      env: 
-        - TYPE=Debug
-      
+      env: TYPE=Debug
+
 before_install:
   - eval "${MATRIX_EVAL}"
   - wget https://raw.githubusercontent.com/emp-toolkit/emp-readme/master/scripts/install.py