Add daily go.mod autoupdate workflow

.github/workflows/autoupdate.yaml

@@ -0,0 +1,20 @@
+name: Autoupdate go.mod and go.sum
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 3 * * *"
+
+permissions:
+  contents: write
+  actions: write
+  pull-requests: write
+  security-events: write
+
+jobs:
+  autoupdate:
+    uses: lukaszraczylo/shared-actions/.github/workflows/go-autoupdate.yaml@main
+    with:
+      go-version: ">=1.24"
+      release-workflow: "release.yaml"
+    secrets: inherit

.goreleaser.yaml

@@ -57,11 +57,10 @@ signs:
     args:
       - "sign-blob"
       - "--yes"
-      - "${artifact}"
-      - "--output-certificate"
-      - "${signature}.pem"
       - "--bundle"
-      - "${signature}.sigstore.json"
+      - "${signature}"
+      - "${artifact}"
+    signature: "checksums.txt.sigstore.json"
 
 docker_signs:
   - cmd: cosign