test: Register set-namespace:v0.4.1 in in-process function map

The tests use set-namespace:v0.4.1 but the function map only had
:latest registered. Added v0.4.1 mapping to enable in-process
function execution in tests.

Signed-off-by: SurbhiAgarwal1 <agarwalsurbhi1807@gmail.com>

Author: SurbhiAgarwal1

internal/kptops/functions.go

@@ -21,6 +21,7 @@ import (
 var functions map[string]framework.ResourceListProcessorFunc = map[string]framework.ResourceListProcessorFunc{
 	"ghcr.io/kptdev/krm-functions-catalog/apply-setters:v0.2.0":     applySetters,
 	"ghcr.io/kptdev/krm-functions-catalog/set-labels:v0.1.5":        setLabels,
+	"ghcr.io/kptdev/krm-functions-catalog/set-namespace:v0.4.1":     setNamespace,
 	"ghcr.io/kptdev/krm-functions-catalog/set-namespace:latest":      setNamespace,
 	"ghcr.io/kptdev/krm-functions-catalog/set-labels:latest":         setLabels,
 	"ghcr.io/kptdev/krm-functions-catalog/wasm/set-namespace:v0.5.1": setNamespace,