🔧 Ignore pubv in knip via knip.json

pubv is a CLI invoked by release.sh, never imported, so knip reported
it as an unused devDependency on every advisory run. Add a knip config
with an ignoreDependencies entry; verified removal of the entry
reproduces the report.

knip.json

@@ -0,0 +1,4 @@
+{
+    "$schema": "./node_modules/knip/schema.json",
+    "ignoreDependencies": ["@runwisp/pubv"]
+}