chore: bump agentic version: 1.43.0 (aws#2463)

Co-authored-by: aws-toolkit-automation <>

Author: Will-ShaoHua

app/aws-lsp-codewhisperer-runtimes/src/version.json

@@ -1,3 +1,3 @@
 {
-    "agenticChat": "1.42.0"
+    "agenticChat": "1.43.0"
 }