INFRA: run LC ci after core changes (#13742)

.github/workflows/langchain_ci.yml

@@ -14,6 +14,7 @@ on:
       - '.github/workflows/langchain_ci.yml'
       - 'libs/*'
       - 'libs/langchain/**'
+      - 'libs/core/**'
   workflow_dispatch:  # Allows to trigger the workflow manually in GitHub UI
 
 # If another push to the same PR or branch happens while this workflow is still running,

.github/workflows/langchain_experimental_ci.yml

@@ -13,6 +13,8 @@ on:
       - '.github/workflows/langchain_experimental_ci.yml'
       - 'libs/*'
       - 'libs/experimental/**'
+      - 'libs/langchain/**'
+      - 'libs/core/**'
   workflow_dispatch:  # Allows to trigger the workflow manually in GitHub UI
 
 # If another push to the same PR or branch happens while this workflow is still running,