Sentry: bump getsentry/relay from 26.3.1 to 26.4.1 in /services/sentry (#22)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

services/sentry/docker-compose.yml

@@ -418,7 +418,7 @@ services:
         max-file: "50"
 
   relay:
-    image: "${RELAY_IMAGE:-ghcr.io/getsentry/relay:26.3.1}"
+    image: "${RELAY_IMAGE:-ghcr.io/getsentry/relay:26.4.1}"
     container_name: sentry-relay
     depends_on:
       kafka: