ci: limit ClusterFuzzLite workflow to src/ and .clusterfuzzlite/ changes (hiero-ledger#2304)

Signed-off-by: Anshul Kushwaha <137977998+sudo-anshul@users.noreply.github.com>

Author: sudo-anshul

.github/workflows/clusterfuzzlite.yml

@@ -2,9 +2,19 @@ name: ClusterFuzzLite
 
 on:
   pull_request:
+    paths:
+      - "src/**"
+      - ".clusterfuzzlite/**"
+      - "pyproject.toml"
+      - "generate_proto.py"
   push:
     branches:
       - main
+    paths:
+      - "src/**"
+      - ".clusterfuzzlite/**"
+      - "pyproject.toml"
+      - "generate_proto.py"
 
 permissions: read-all