bump deps, fix format, add docs

Author: Massimiliano Pippi

README.md

@@ -39,6 +39,17 @@ To pin the exact version:
     version: '3.9.1'
 ```
 
+The action queries the GitHub API to fetch releases data, to avoid rate limiting,
+pass the default token with the `repo-token` variable:
+
+```yaml
+- name: Install Protoc
+  uses: arduino/setup-protoc@master
+  with:
+    repo-token: ${{ secrets.GITHUB_TOKEN }}
+```
+
+
 ## Development
 
 To work on the codebase you have to install all the dependencies:

__tests__/main.test.ts

@@ -14,7 +14,7 @@ process.env["RUNNER_TOOL_CACHE"] = toolDir;
 import * as installer from "../src/installer";
 
 describe("installer tests", () => {
-  beforeEach(async function () {
+  beforeEach(async function() {
     await io.rmRF(toolDir);
     await io.rmRF(tempDir);
     await io.mkdirP(toolDir);

action.yml

@@ -8,6 +8,9 @@ inputs:
   include-pre-releases:
     description: 'Include github pre-releases in latest version calculation'
     default: 'false'
+  repo-token:
+    description: 'GitHub repo token to use to avoid rate limiter'
+    default: ''
 runs:
   using: 'node12'
   main: 'lib/main.js'