buildx: metadata and refs resolution for build and bake

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

src/types/bake.ts

@@ -19,6 +19,10 @@ export interface BakeDefinition {
   target: Record<string, Target>;
 }
 
+export interface BakeMetadata {
+  [target: string]: Record<string, string>;
+}
+
 export interface Group {
   targets: Array<string>;
 }

src/types/build.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright 2024 actions-toolkit 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.
+ */
+
+export type BuildMetadata = {
+  [key: string]: string;
+};