Set main as the default branch (#527)

* set main as the default branch

* revert change to tool-cache default branch

* use versions where applicable

packages/cache/__tests__/restoreCache.test.ts

@@ -104,7 +104,7 @@ test('restore with gzip compressed cache found', async () => {
 
   const cacheEntry: ArtifactCacheEntry = {
     cacheKey: key,
-    scope: 'refs/heads/master',
+    scope: 'refs/heads/main',
     archiveLocation: 'www.actionscache.test/download'
   }
   const getCacheMock = jest.spyOn(cacheHttpClient, 'getCacheEntry')
@@ -166,7 +166,7 @@ test('restore with zstd compressed cache found', async () => {
 
   const cacheEntry: ArtifactCacheEntry = {
     cacheKey: key,
-    scope: 'refs/heads/master',
+    scope: 'refs/heads/main',
     archiveLocation: 'www.actionscache.test/download'
   }
   const getCacheMock = jest.spyOn(cacheHttpClient, 'getCacheEntry')
@@ -223,7 +223,7 @@ test('restore with cache found for restore key', async () => {
 
   const cacheEntry: ArtifactCacheEntry = {
     cacheKey: restoreKey,
-    scope: 'refs/heads/master',
+    scope: 'refs/heads/main',
     archiveLocation: 'www.actionscache.test/download'
   }
   const getCacheMock = jest.spyOn(cacheHttpClient, 'getCacheEntry')

packages/cache/package.json

@@ -8,7 +8,7 @@
     "actions",
     "cache"
   ],
-  "homepage": "https://github.com/actions/toolkit/tree/master/packages/cache",
+  "homepage": "https://github.com/actions/toolkit/tree/main/packages/cache",
   "license": "MIT",
   "main": "lib/cache.js",
   "types": "lib/cache.d.ts",

packages/cache/src/internal/cacheUtils.ts

@@ -9,7 +9,7 @@ import * as util from 'util'
 import {v4 as uuidV4} from 'uuid'
 import {CacheFilename, CompressionMethod} from './constants'
 
-// From https://github.com/actions/toolkit/blob/master/packages/tool-cache/src/tool-cache.ts#L23
+// From https://github.com/actions/toolkit/blob/main/packages/tool-cache/src/tool-cache.ts#L23
 export async function createTempDirectory(): Promise<string> {
   const IS_WINDOWS = process.platform === 'win32'