use IDE 1.8.13 for build

cmaglie · cmaglie · commit 3d5c67c6a17e · 2021-05-05T12:48:42.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,7 +15,7 @@ jdk:
 
 script:
   - export SRC=$PWD
-  - export TAG=1.6.9
+  - export TAG=1.8.13
   - wget https://github.com/arduino/Arduino/archive/$TAG.zip
   - unzip $TAG.zip
   - pushd Arduino-$TAG/build
