Fix extension CI workflow disclaimer (#43926)

Release Notes:

- N/A

extensions/workflows/bump_version.yml

@@ -1,4 +1,4 @@
-# Generated from xtask::workflows:: within the Zed repository.extensions::bump_version
+# Generated from xtask::workflows::extensions::bump_version within the Zed repository.
 # Rebuild with `cargo xtask workflows`.
 name: extensions::bump_version
 on:

extensions/workflows/release_version.yml

@@ -1,4 +1,4 @@
-# Generated from xtask::workflows:: within the Zed repository.extensions::release_version
+# Generated from xtask::workflows::extensions::release_version within the Zed repository.
 # Rebuild with `cargo xtask workflows`.
 name: extensions::release_version
 on:

extensions/workflows/run_tests.yml

@@ -1,4 +1,4 @@
-# Generated from xtask::workflows:: within the Zed repository.extensions::run_tests
+# Generated from xtask::workflows::extensions::run_tests within the Zed repository.
 # Rebuild with `cargo xtask workflows`.
 name: extensions::run_tests
 on: