chore(config): bump manager image to 8701d65 (post-#348)

[bdchatham]

Summary

Rolls forward the controller image pin from 7caf9ba → 8701d65 so platform clusters (which import config/default at ?ref=main) pick up:

• feat(node): track StatefulSet on Status, switch to typed Get+Update sync, pause scales to 0 #345 — SeiNode StatefulSet refactor: typed SSA sync, Status.StatefulSet tracking, pause-scales-to-zero
• fix(noderesource): clear Status.StatefulSet when SyncStatefulSet deletes an impostor #348 — impostor-clear fix: SyncStatefulSet clears Status.StatefulSet when deleting an impostor, preventing the cross-reconcile churn loop Cursor caught

Rollout

Once merged, platform repo's next reconcile picks up the new tag automatically via github.com/sei-protocol/sei-k8s-controller/config/default?ref=main.

🤖 Generated with Claude Code

[cursor]

PR Summary

Low Risk
Low code risk since this PR only updates the pinned controller image, but it can affect cluster behavior on rollout depending on the contents of the new image.

Overview
Bumps the sei-k8s-controller image tag in config/manager/manager.yaml from 7caf9ba... to 8701d65..., causing the controller-manager Deployment to roll forward to the newer controller build.

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