data/excluded: add 3 reports

  - data/excluded/GO-2026-6652.yaml
  - data/excluded/GO-2026-6653.yaml
  - data/excluded/GO-2026-6658.yaml

Fixes golang/vulndb#6652
Fixes golang/vulndb#6653
Fixes golang/vulndb#6658

Change-Id: I4b8a18722a4e662c31bfa141643d26d58f5011d2
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/845285
Reviewed-by: Nicholas Husin <nsh@golang.org>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Nicholas Husin <husin@google.com>
Auto-Submit: Ian Alexander <jitsu@google.com>

data/excluded/GO-2026-6652.yaml

diff --git a/data/excluded/GO-2026-6652.yaml b/data/excluded/GO-2026-6652.yaml
new file mode 100644
index 0000000..dd31c1a
--- /dev/null
+++ b/data/excluded/GO-2026-6652.yaml
@@ -0,0 +1,6 @@
+id: GO-2026-6652
+excluded: WITHDRAWN
+modules:
+    - module: github.com/siyuan-note/siyuan/kernel
+ghsas:
+    - GHSA-69jp-f2p8-9vrg

data/excluded/GO-2026-6653.yaml

diff --git a/data/excluded/GO-2026-6653.yaml b/data/excluded/GO-2026-6653.yaml
new file mode 100644
index 0000000..9bd86a9
--- /dev/null
+++ b/data/excluded/GO-2026-6653.yaml
@@ -0,0 +1,6 @@
+id: GO-2026-6653
+excluded: WITHDRAWN
+modules:
+    - module: github.com/siyuan-note/siyuan/kernel
+ghsas:
+    - GHSA-x8p6-569w-fmmr

data/excluded/GO-2026-6658.yaml

diff --git a/data/excluded/GO-2026-6658.yaml b/data/excluded/GO-2026-6658.yaml
new file mode 100644
index 0000000..3663fbc
--- /dev/null
+++ b/data/excluded/GO-2026-6658.yaml
@@ -0,0 +1,6 @@
+id: GO-2026-6658
+excluded: WITHDRAWN
+modules:
+    - module: github.com/go-chi/chi
+ghsas:
+    - GHSA-xcvf-46f4-xwxf