gitea: pin v1.25.4 -> v1.26.2

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

Author: solsson

git-source/base/kustomization.yaml

@@ -9,4 +9,4 @@ resources:
 images:
 - name: gitea/gitea
   newName: ghcr.io/yolean/gitea
-  newTag: 1.25.4-rootless@sha256:1926e89ad28358ef2146bb8a1b9c3ba24bae681cb02b72d2df11125fdc675abe
+  newTag: 1.26.2-rootless@sha256:c5c21a7705a16f2b2369384a3b7d67c5ed761a818bbb0a55187b5cf98cdc2e68