[hotfix] Embed release utils
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..b45818f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "tools/release/shared"]
+ path = tools/release/shared
+ url = https://github.com/apache/flink-connector-shared-utils
+ branch = release_utils
diff --git a/tools/release/shared b/tools/release/shared
new file mode 160000
index 0000000..81065c0
--- /dev/null
+++ b/tools/release/shared
@@ -0,0 +1 @@
+Subproject commit 81065c02fda44e20993a207d075299d2ec5166f1
