fix(container): update mastodon group ( nightly.2025-04-18 → nightly.2025-04-20 )

| datasource | package                               | from               | to                 |
| ---------- | ------------------------------------- | ------------------ | ------------------ |
| docker     | ghcr.io/glitch-soc/mastodon           | nightly.2025-04-18 | nightly.2025-04-20 |
| docker     | ghcr.io/glitch-soc/mastodon-streaming | nightly.2025-04-18 | nightly.2025-04-20 |


Signed-off-by: Winston R. Milling <[email protected]>

Author: renovate[bot]

social/mastodon/mastodon.yaml

@@ -17,7 +17,7 @@ spec:
   values:
     image:
       repository: ghcr.io/glitch-soc/mastodon
-      tag: nightly.2025-04-18
+      tag: nightly.2025-04-20
       pullPolicy: IfNotPresent
 
     mastodon:
@@ -80,7 +80,7 @@ spec:
       streaming:
         image:
           repository: ghcr.io/glitch-soc/mastodon-streaming
-          tag: nightly.2025-04-18
+          tag: nightly.2025-04-20
         port: 4000
       web:
         port: 3000