Add .github/hooks/hooks.json for Copilot Skills reference telemetry (#48610)

Agent-Logs-Url: https://github.com/Azure/azure-sdk-for-java/sessions/5fb4ff6b-c53e-43b7-a192-b5c2bbcd4bfb

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: praveenkuttappan <55455725+praveenkuttappan@users.noreply.github.com>

Author: Copilot

.github/hooks/hooks.json

@@ -0,0 +1,11 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "type": "command",
+        "command": "pwsh eng/common/scripts/azsdk_tool_telemetry.ps1", 
+        "timeoutSec": 5
+      }
+    ]
+  }
+}