Add shutdown hook function for lua plugin

[shukitchan]

No description provided.

[Copilot]

Pull request overview

Adds a Lua global plugin shutdown hook so Lua scripts can run cleanup logic when ATS exits, along with documentation and a gold test to validate the behavior.

Changes:

• Introduces a new Lua global callback do_global_shut_down and wires it to TS_LIFECYCLE_SHUTDOWN_HOOK.
• Adds a gold test + Lua script to verify the new shutdown hook is invoked.
• Documents the new Lua hook in the admin guide.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/gold_tests/pluginTest/lua/lua_global_shutdown.test.py	New gold test that exercises the Lua global shutdown hook via ATS shutdown.
tests/gold_tests/pluginTest/lua/global_shutdown.lua	New Lua script implementing the new global read + shutdown hooks for the test.
plugins/lua/ts_lua_common.h	Adds a constant for the new Lua global shutdown function name.
plugins/lua/ts_lua.cc	Registers a lifecycle shutdown hook and invokes the Lua shutdown function for each Lua state.
doc/admin-guide/plugins/lua.en.rst	Documents the new Lua shutdown hook and provides an example.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.