Update index.yaml

Signed-off-by: shcherbak <shcherbak@users.noreply.github.com>

Author: shcherbak

index.yaml

@@ -407,6 +407,13 @@ entries:
     - https://github.com/code-tool/matrix-stack/releases/download/sentry-webhook-0.0.1/sentry-webhook-0.0.1.tgz
     version: 0.0.1
   synapse:
+  - apiVersion: v1
+    created: "2025-09-08T12:07:12.170922718Z"
+    digest: 95be71c9d6a5709911059c87705809d746645fb55f581402a801f4da404434b8
+    name: synapse
+    urls:
+    - https://github.com/code-tool/matrix-stack/releases/download/synapse-0.28.4/synapse-0.28.4.tgz
+    version: 0.28.4
   - apiVersion: v1
     created: "2025-09-08T11:57:58.721920924Z"
     digest: 863c9d7149aaf6e33ae4712d1e50c1a51dbcec2dccbb43ca439b595f0262e11c
@@ -1039,4 +1046,4 @@ entries:
     urls:
     - https://github.com/code-tool/matrix-stack/releases/download/webhook-0.0.2/webhook-0.0.2.tgz
     version: 0.0.2
-generated: "2025-09-08T11:57:58.722535652Z"
+generated: "2025-09-08T12:07:12.171640245Z"