vendor: update compose-go to v2.0.0-rc.3

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

vendor/github.com/compose-spec/compose-go/v2/transform/mapping.go

@@ -0,0 +1,43 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package transform
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/compose-spec/compose-go/v2/tree"
+)
+
+func transformKeyValue(data any, p tree.Path) (any, error) {
+	switch v := data.(type) {
+	case map[string]any:
+		return v, nil
+	case []any:
+		mapping := map[string]any{}
+		for _, e := range v {
+			before, after, found := strings.Cut(e.(string), "=")
+			if !found {
+				return nil, fmt.Errorf("%s: invalid value %s, expected key=value", p, e)
+			}
+			mapping[before] = after
+		}
+		return mapping, nil
+	default:
+		return nil, fmt.Errorf("%s: invalid type %T", p, v)
+	}
+}