Update gitsearch.yml

src/main/docker/gitsearch.yml

 version: '3.5'
 services:
   gitsearch-app:
-    image: docker.uibk.ac.at:443/csar9407/gitsearch:clickable-search-info-14052f10d9a7662598e87bae3e51c2cc48b2e7ae
+    image: docker.uibk.ac.at:443/csar9407/gitsearch:master-1bf1f21ceee62f335eeb4b070d93443cdbf4a14b
     container_name: sharing_search
     environment:
       - _JAVA_OPTIONS=-Xmx512m -Xms256m