[hotfix][Connector/Kafka] Add release tools as submodule
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e5d40f3
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "tools/releasing/shared"]
+ path = tools/releasing/shared
+ url = https://github.com/apache/flink-connector-shared-utils
+ branch = release_utils
diff --git a/tools/releasing/shared b/tools/releasing/shared
new file mode 160000
index 0000000..45bb68f
--- /dev/null
+++ b/tools/releasing/shared
@@ -0,0 +1 @@
+Subproject commit 45bb68f550874ec398b1da344dd4d82e703b4be1
