C0: rebuild valkey from squashed main commit

Image tags from PR #362 (v8.1.7-02859c5{,-nix}) referenced a branch
SHA that no longer exists on main after squash-merge. Rebuilt both
the dagger arm64 and nix amd64 variants from the squashed commit
(ecded30) and updated paperless + immich-ringtail to the new tags.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

argocd/manifests/immich-ringtail/kustomization.yaml

@@ -26,4 +26,4 @@ images:
   # is arm64-only and serves paperless on indri.
   - name: docker.io/valkey/valkey
     newName: registry.ops.eblu.me/blumeops/valkey
-    newTag: v8.1.7-02859c5-nix
+    newTag: v8.1.7-ecded30-nix

argocd/manifests/paperless/kustomization.yaml

@@ -16,4 +16,4 @@ images:
     newTag: v2.20.13-07f52e9
   - name: docker.io/library/redis
     newName: registry.ops.eblu.me/blumeops/valkey
-    newTag: v8.1.7-02859c5
+    newTag: v8.1.7-ecded30