Update dependency kubeseal to v0.38.4

Author: renovate[bot]

.config/mise/config.toml

@@ -78,7 +78,7 @@ helm-ls      = "0.5.4"     # Helm language server
 kind         = "0.32.0"    # k8s in Docker
 kubectl      = "1.36.2"    # k8s CLI (formerly brew "kubernetes-cli")
 kubectx      = "0.11.0"    # context/namespace switcher
-kubeseal     = "0.37.0"    # SealedSecrets CLI
+kubeseal     = "0.38.4"    # SealedSecrets CLI
 k9s          = "0.51.0"    # k8s TUI
 stern        = "1.34.0"    # multi-pod log tailing
 crane        = "0.21.6"    # container registry tool