[CI] Bump busted to v2.0.rc13-0 (#4966)

Includes https://github.com/koreader/koreader-base/pull/906

Cf. https://github.com/koreader/koreader-base/issues/905

.ci/helper_luarocks.sh

@@ -11,7 +11,7 @@ echo "wrap_bin_scripts = false" >>"$HOME/.luarocks/config.lua"
 travis_retry luarocks --local install luafilesystem
 # for verbose_print module
 travis_retry luarocks --local install ansicolors
-travis_retry luarocks --local install busted 2.0.rc12-1
+travis_retry luarocks --local install busted 2.0.rc13-0
 #- mv -f $HOME/.luarocks/bin/busted_bootstrap $HOME/.luarocks/bin/busted
 # Apply junit testcase time fix. This can be removed once there is a busted 2.0.rc13 or final
 # See https://github.com/Olivine-Labs/busted/commit/830f175c57ca3f9e79f95b8c4eaacf58252453d7

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: frenzie/koappimage:0.1.4
+      - image: koreader/koappimage:0.1.5
         environment:
           EMULATE_READER: 1
           # this is for shellcheck 0.4.5 and lower; can be removed for 0.4.6