change the CVE number

Author: SimOnPanw

README.md

@@ -15,7 +15,7 @@ Code2Cloud traceability is a GA feature and available now.
 The impact graph is a **BETA** feature and requires a feature flag to be enabled.  
 The steps to access it are as follows:
 1. Go to the Investigate tab.
-2. Search for a vulnerability with CVE ID: CVE-2023-3104.
+2. Search for a vulnerability with CVE ID: CVE-2023-31047.
 3. Click on the runtime container image.
 4. Click "View C2C Impact Graph".