feat!: dropped Node@6 and Node@8

Author: cloudinary-pkoniu

.eslintignore

@@ -1,4 +1,3 @@
-lib-es5/*
 *.min.js
 node_modules
 test_cache/

.npmignore

@@ -8,7 +8,6 @@ test/
 .env
 .travis.yml
 !lib/**
-!lib-es5/**
 !package.json
 !babel.config.js
 !.npmignore

.travis.yml

@@ -3,10 +3,6 @@ nvm:
 
 matrix:
   include:
-  - node_js: "6"
-    script: npm install [email protected] && npm run test-with-temp-cloud
-  - node_js: "8"
-    script: npm run test-with-temp-cloud
   - node_js: "10"
     script: npm run test-with-temp-cloud
   - node_js: "12"
@@ -15,6 +11,8 @@ matrix:
     script: npm run test-with-temp-cloud
   - node_js: "16"
     script: npm run test-with-temp-cloud
+  - node_js: "18"
+    script: npm run test-with-temp-cloud
 
 notifications:
   email: