Updated mechanism to get Github API token.

Replaced explicit action input with environment variable. This is
the recommended method for retrieving an API token instead of an
input to avoid accidental leakage.

- Replaced `getInput` call to get API token with call to `process.env`.
- Updated unit tests to reflect the prior change.
  - Removed mocks for `getInput` and no-longer-used import.
  - Added automatic assignment for `process.env.GITHUB_TOKEN` to jest
    config.
- Updated test runner to pass token via environment variable.
- Updated README to include env customizations.

.github/workflows/test.yml

@@ -30,4 +30,6 @@ jobs:
         id: run-action
         with:
           script: examples/script.js
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - run: 'echo "${{ steps.run-action.outputs.output }}" | jq'

README.md

@@ -18,6 +18,10 @@ Actions.
 
     # Path to script executed by Flyscrape. This input is required.
     script: ''
+  env:
+    # Required to access Github API to find download URL for specific Flyscrape
+    # version.
+    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 ```
 
 ## Getting Script Output

__tests__/github.test.ts

@@ -1,7 +1,6 @@
 import { beforeEach, describe, expect, it, jest } from "@jest/globals";
 import { DeepPick } from "ts-deep-pick";
 
-import { getInput } from "@actions/core";
 import { getOctokit } from "@actions/github";
 import { components } from "@octokit/openapi-types";
 
@@ -19,10 +18,6 @@ type OnlyAssetURLForRelease = DeepPick<
 >;
 
 // Setup mocks
-jest.mock("@actions/core", () => ({
-  getInput: jest.fn(),
-}));
-
 jest.mock("@actions/github", () => ({
   getOctokit: jest.fn(),
 }));
@@ -33,8 +28,6 @@ describe("getAssetURL", () => {
   });
 
   it("return url for v0.8.0 for linux/amd64", async () => {
-    (getInput as jest.Mock).mockReturnValueOnce("gh-token");
-
     const expectedURL =
       "https://github.com/philippta/flyscrape/releases/download/v0.8.0/flyscrape_linux_amd64.tar.gz";
     const mockOctokit = {
@@ -59,8 +52,6 @@ describe("getAssetURL", () => {
   });
 
   it("return v0.9.0 url for latest for linux/amd64", async () => {
-    (getInput as jest.Mock).mockReturnValueOnce("gh-token");
-
     const mockOctokit = {
       rest: {
         repos: {
@@ -102,8 +93,6 @@ describe("getAssetURL", () => {
   });
 
   it("throws error for invalid latest version", async () => {
-    (getInput as jest.Mock).mockReturnValueOnce("gh-token");
-
     const mockOctokit = {
       rest: {
         repos: {
@@ -126,8 +115,6 @@ describe("getAssetURL", () => {
   });
 
   it("throws error if unable to locate specified version", async () => {
-    (getInput as jest.Mock).mockReturnValueOnce("gh-token");
-
     const expectedURL =
       "https://github.com/philippta/flyscrape/releases/download/v0.8.0/flyscrape_linux_amd64.tar.gz";
     const mockOctokit = {

jest.config.ts

@@ -4,3 +4,7 @@ module.exports = {
   testEnvironment: "node",
   verbose: true,
 };
+
+process.env = Object.assign(process.env, {
+  GITHUB_TOKEN: "gh-token",
+});

src/github.ts

@@ -17,7 +17,7 @@ async function getTagFromVersion(version: string): Promise<string> {
     return version;
   }
 
-  const octokit = github.getOctokit(core.getInput("github-token"));
+  const octokit = github.getOctokit(process.env.GITHUB_TOKEN);
 
   var tags: string[] = [];
   const { data } = await octokit.rest.repos.listTags({