docs: add missing release note for 3.4rc3

Uday R · Uday R · commit 3d95d405b4ac · 2024-09-22T20:34:25.000-04:00
diff --git a/doc/RELEASE.md b/doc/RELEASE.md
@@ -45,6 +45,8 @@ The new mismatch documentation can be found here: https://cve-bin-tool.readthedo
 
 ## CVE Binary Tool 3.4rc3
 
+Pre-release for v3.4.
+
 ## CVE Binary Tool 3.4rc2
 
 Some late-breaking changes to improve backwards compatibility and fix a bug in comment propagation for triage.
