circleci: fix bug in directory creation 🙄

circle.yml

@@ -25,7 +25,7 @@ dependencies:
       - docker-compose -v
       - yarn global add triton
       - echo '{"url":"https://eu-ams-1.api.joyent.com","account":"'$SDC_ACCOUNT'","keyId":"c3:30:35:9b:85:48:73:44:31:cc:4b:2e:6a:00:16:e2","name":"eu-ams-1","curr":true}' | triton profile create -f -
-      - mkdir -p ${CIRCLE_TEST_REPORTS}/{tap-xunit}/
+      - mkdir -p ${CIRCLE_TEST_REPORTS}/tap-xunit/
   override:
       - make && make install