Release: v2.2.0 (#719)

## What's Changed
* Introduce an option to skip the tool cache by @sethvargo in
#718


**Full Changelog**:
v2.1.5...v2.2.0

Author: google-github-actions-bot

README.md

@@ -102,6 +102,14 @@ jobs:
     ⚠️ You will not be able to install additional gcloud components, because the
     system installation is locked.
 
+-   <a name="skip_tool_cache"></a><a href="#user-content-skip_tool_cache"><code>skip_tool_cache</code></a>: _(Optional)_ Skip transferring the downloaded artifacts into the runner's tool cache.
+    On GitHub-managed runners, this makes no difference since they are
+    ephemeral. On self-hosted runners, this controls whether the downloads are
+    cached stored on the disk.
+
+    For backwards-compatibility, this is is "false" by default. Setting the
+    value to "true" can significantly speed up installation times.
+
 
 <!-- END_AUTOGEN_INPUTS -->
 

dist/index.js

@@ -1,6 +1,6 @@
 {
   "name": "setup-gcloud",
-  "version": "2.1.5",
+  "version": "2.2.0",
   "description": "Setup gcloud GitHub action",
   "main": "dist/main/index.js",
   "scripts": {