move .ci tests to folder that runs successfully

(cherry picked from commit ea0a4dd)

Isolate tests to `count` folder for now.

Author: Mpdreamz

.ci/run-tests

@@ -64,4 +64,4 @@ docker run \
   --volume ${repo}/build/output:/sln/build/output \
   --rm \
   elastic/elasticsearch-net \
-  ./build.sh rest-spec-tests -e ${elasticsearch_url} -o /sln/build/output/rest-spec-junit.xml
+  ./build.sh rest-spec-tests -f count -e ${elasticsearch_url} -o /sln/build/output/rest-spec-junit.xml