deps(mise): update node.js to v26

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

mise.toml

@@ -6,7 +6,7 @@
 [tools]
 cosign = "3.1.4"
 go = "1.27.3"
-node = "24"
+node = "26"
 prek = "0.5.7"
 task = "3.54.0"