ci: bump org .github hooks and workflow to v1.4.0

The add-license hook now fails when the LICENSE copyright year is
stale.

TRI-1100

Author: mc-nv

.github/workflows/conventional-pr.yml

@@ -38,4 +38,4 @@ jobs:
   conventional-pr:
     permissions:
       pull-requests: write
-    uses: triton-inference-server/.github/.github/workflows/conventional-pr.yml@v1.3.1
+    uses: triton-inference-server/.github/.github/workflows/conventional-pr.yml@v1.4.0

.pre-commit-config.yaml

@@ -84,6 +84,6 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/triton-inference-server/.github
-  rev: v1.3.1
+  rev: v1.4.0
   hooks:
   - id: add-license