@actions/cache: convert to an ESM module (#2275)

* `@actions/cache`: convert to an ESM module

* Update the fixture to ESM syntax

* Update the cache workflows

* Bump `@actions/glob` to `0.6.1`

* Fix awaiting in the cache unit tests

* Fix a type issues in contracts

* Export the `DownloadOptions`/`UploadOptions` like before

* More cache test fixes

* Make the cache units tests better

* Add some more logging

* Add retries to restore-cache.mjs

src/internal/contracts.ts

@@ -0,0 +1,45 @@
+import {CompressionMethod} from './constants.js'
+import {TypedResponse} from '@actions/http-client/lib/interfaces'
+import {HttpClientError} from '@actions/http-client'
+
+export interface ITypedResponseWithError<T> extends TypedResponse<T> {
+  error?: HttpClientError
+}
+
+export interface ArtifactCacheEntry {
+  cacheKey?: string
+  scope?: string
+  cacheVersion?: string
+  creationTime?: string
+  archiveLocation?: string
+}
+
+export interface ArtifactCacheList {
+  totalCount: number
+  artifactCaches?: ArtifactCacheEntry[]
+}
+
+export interface CommitCacheRequest {
+  size: number
+}
+
+export interface ReserveCacheRequest {
+  key: string
+  version?: string
+  cacheSize?: number
+}
+
+export interface ReserveCacheResponse {
+  cacheId: number
+}
+
+export interface InternalCacheOptions {
+  compressionMethod?: CompressionMethod
+  enableCrossOsArchive?: boolean
+  cacheSize?: number
+}
+
+export interface ArchiveTool {
+  path: string
+  type: string
+}