feat: support vectorset (#3375)

* feat: support vectorset

* fix: char encoding error

* use `any` instread of `interface{}`

* update vectorset API

Signed-off-by: fukua95 <fukua95@gmail.com>

* refact: MapStringFloat64Cmd -> VectorInfoSliceCmd

Signed-off-by: fukua95 <fukua95@gmail.com>

* update:

* the type of vector attribute: string -> VectorAttributeMarshaller
* Add a new API VRemAttr
* mark the APIs are experimental

Signed-off-by: fukua95 <fukua95@gmail.com>

* trigger CI again

Signed-off-by: fukua95 <fukua95@gmail.com>

* rename a API: VRemAttr -> VClearAttributes

Signed-off-by: fukua95 <fukua95@gmail.com>

* add test

Signed-off-by: fukua95 <fukua95@gmail.com>

* feat(vectorset): improve VSetAttr API and add comprehensive test suite

- Simplify VSetAttr to accept interface{} with automatic JSON marshalling
- Remove VectorAttributeMarshaller interface for simpler API
- Add comprehensive unit tests for all vectorset commands

---------

Signed-off-by: fukua95 <fukua95@gmail.com>
Co-authored-by: Nedyalko Dyakov <nedyalko.dyakov@gmail.com>

unit_test.go

@@ -0,0 +1,26 @@
+package redis
+
+import (
+	"context"
+)
+
+// mockCmdable is a mock implementation of cmdable that records the last command.
+// This is used for unit testing command construction without requiring a Redis server.
+type mockCmdable struct {
+	lastCmd   Cmder
+	returnErr error
+}
+
+func (m *mockCmdable) call(ctx context.Context, cmd Cmder) error {
+	m.lastCmd = cmd
+	if m.returnErr != nil {
+		cmd.SetErr(m.returnErr)
+	}
+	return m.returnErr
+}
+
+func (m *mockCmdable) asCmdable() cmdable {
+	return func(ctx context.Context, cmd Cmder) error {
+		return m.call(ctx, cmd)
+	}
+}