Use develop version of doc-builder-testing

Need to fix test run on travis ci

.travis.yml

@@ -17,7 +17,7 @@ jobs:
         - npm install -g grunt-cli
         - npm install --prefix build
         - grunt --level=WHITESPACE_ONLY --base build --gruntfile build/Gruntfile.js
-        - docker pull onlyofficetestingrobot/doc-builder-testing
+        - docker pull onlyofficetestingrobot/doc-builder-testing:develop-latest
         - docker run -v $PWD/word:/opt/onlyoffice/documentbuilder/sdkjs/word -v $PWD/cell:/opt/onlyoffice/documentbuilder/sdkjs/cell -v $PWD/slide:/opt/onlyoffice/documentbuilder/sdkjs/slide onlyofficetestingrobot/doc-builder-testing
 notifications:
   email: