docs: fix info admonitions in security.md (electron#42451)

docs/tutorial/security.md

@@ -246,7 +246,7 @@ and prevent the use of Node primitives `contextIsolation` **must** also be used.
 :::info
 For more information on what `contextIsolation` is and how to enable it please
 see our dedicated [Context Isolation](context-isolation.md) document.
-:::info
+:::
 
 ### 4. Enable process sandboxing
 
@@ -259,7 +259,7 @@ content in an unsandboxed process, including the main process, is not advised.
 :::info
 For more information on what Process Sandboxing is and how to enable it please
 see our dedicated [Process Sandboxing](sandbox.md) document.
-:::info
+:::
 
 ### 5. Handle session permission requests from remote content