Test/sangshuduo/td 13408 move example back for 2.0 (#10294)

* modify packaging scripts

* add examples/c in CMakeLists.txt

* update tests for 2.0

* [TD-13408]<test>: move rust example back

for 2.0

.gitmodules

@@ -17,3 +17,6 @@
 	path = tests
 	url = https://github.com/taosdata/tests
 	branch = 2.0
+[submodule "examples/rust"]
+	path = examples/rust
+	url = https://github.com/songtianyi/tdengine-rust-bindings.git

rust @ 1c8924dc

+Subproject commit 1c8924dc668e6aa848214c2fc54e3ace3f5bf8df