Update grafana/promtail Docker tag to v3

manifests/link/link.yaml

@@ -37,9 +37,6 @@ data:
     containerdays25-feedback: https://yay-or-nay.cluster.fun/feedback/F8P351QK
     cdl-2026: https://speaking.marcusnoble.co.uk/lMcEwR/pod-deep-dive-the-interesting-bits
     cdl-2026-feedback: https://yay-or-nay.cluster.fun/feedback/EMLARINI
-    cdl-talk-2026: https://speaking.marcusnoble.co.uk/0rRvmv/debugging-your-conference-talk-practical-tips-to-resonate-with-your-audience
-    cdl-talk-2026-feedback: https://yay-or-nay.cluster.fun/feedback/22TO05MQ
-    technical-talking-blog-post: https://marcusnoble.co.uk/2025-04-30-my-tips-on-giving-technical-talks/
 ---
 apiVersion: v1
 kind: Service
@@ -64,8 +61,6 @@ metadata:
   namespace: link
   labels:
     app: link
-  annotations:
-    secret.reloader.stakater.com/reload: "urls-map"
 spec:
   replicas: 1
   selector: