mastodon: bump to 4.2.7

Change-Id: Ic2e51449e801b5446ebd0bd0e7af2d6f8cbf4f13
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1906
Reviewed-by: ar <ar@hackerspace.pl>
diff --git a/app/mastodon/kube/mastodon.libsonnet b/app/mastodon/kube/mastodon.libsonnet
index 221d5a7..21f6a8f 100644
--- a/app/mastodon/kube/mastodon.libsonnet
+++ b/app/mastodon/kube/mastodon.libsonnet
@@ -15,7 +15,7 @@
         # /.well-known/webfinger to webDomain.
         webDomain: cfg.localDomain,
         images: {
-            mastodon: "ghcr.io/mastodon/mastodon:v4.2.6@sha256:e2a8ebfd4d53fd5a8be16050025525291735ce2006342577d40d151d001da3b1",
+            mastodon: "ghcr.io/mastodon/mastodon:v4.2.7@sha256:229331a7b684bb394876a04301da8a24f5b9810d849f71127cba976273b38b56",
         },
         passwords: {
             # generate however you like