CI: adjust job names for coverage

Change-Id: Ia5dfd395d89266c488aaf11be08060838e4b4e33
diff --git a/ci/build.sh b/ci/build.sh
index 8b08c3b..d070319 100755
--- a/ci/build.sh
+++ b/ci/build.sh
@@ -75,7 +75,7 @@
 
 if [[ -z "${ARTIFACT_URL}" ]]; then
     # fallback to a promoted artifact
-    ARTIFACT_URL="https://object-store.cloud.muni.cz/swift/v1/ci-artifacts-${ZUUL_TENANT}/${ZUUL_GERRIT_HOSTNAME}/CzechLight/dependencies/${ZUUL_JOB_NAME%%-cover?(-diff)}/${DEP_SUBMODULE_COMMIT}.tar.xz"
+    ARTIFACT_URL="https://object-store.cloud.muni.cz/swift/v1/ci-artifacts-${ZUUL_TENANT}/${ZUUL_GERRIT_HOSTNAME}/CzechLight/dependencies/${ZUUL_JOB_NAME%%-cover?(-previous|-diff)}/${DEP_SUBMODULE_COMMIT}.tar.xz"
 fi
 
 ARTIFACT_FILE=$(basename ${ARTIFACT_URL})