Fixed wrong method name in the bintray release script
diff --git "a/scripts/release_2\133bintray\135upload_packages.sh" "b/scripts/release_2\133bintray\135upload_packages.sh"
index cb42a44..999e7fb 100755
--- "a/scripts/release_2\133bintray\135upload_packages.sh"
+++ "b/scripts/release_2\133bintray\135upload_packages.sh"
@@ -130,7 +130,7 @@
     repository="ignite-deb"
     component="main"
 
-    checkPackageExistance "${repository}" "${package_name}" "${description}"
+    checkPackageExistence "${repository}" "${package_name}" "${description}"
     response=$(curl -H "X-JFrog-Art-Api:${AUTH}" -X PUT "https://apache.jfrog.io/artifactory/ignite-deb/pool/$component/apache-ignite/$ignite_version/$deb;deb.distribution=apache-ignite;deb.component=$component;deb.architecture=all;overrideExistingFiles=true" -T "${deb}")
 done