fix 'github-actions[bot]' usage

README.md

@@ -79,6 +79,7 @@ Here are the configuration options for this Action:
 | Input     | Required? | Default                                     | Description |
 |-----------| --------- |---------------------------------------------| ----------- |
 | `github_token`   | yes | `${{ github.token }}`                         | The GitHub token used to create an authenticated client - Provided for you by default! - You can use the default provided token or you can provide a PAT as an alternative robot user token. Make sure this is a repository scoped token |
+| `handle` | yes | `github-actions[bot]` | When using the default `${{ github.token }}` (as seen above), the "handle" is fetched from this input since the token is repository scoped and it cannot even read its own handle. You should not need to change this input. |
 | `path`      | yes | `config/privileged-requester.yaml`            | Path where the privileged requester configuration can be found |
 | `prCreator` | yes | `${{ github.event.pull_request.user.login }}` | The creator of the PR for this pull request event |
 | `prNumber`  | yes | `${{ github.event.pull_request.number }}`     | The number of the PR for this pull request event |

action.yml

@@ -11,6 +11,10 @@ inputs:
       You can use the default provided token or you can provide a PAT as an alternative robot user token
     required: true
     default: ${{ github.token }}
+  handle:
+    description: 'When using the default ${{ github.token }}, the "handle" is fetched from this input since the token is repository scoped and it cannot even read its own handle. You should not need to change this input.'
+    required: true
+    default: github-actions[bot]
   path:
     description: 'Path where the privileged requester configuration can be found'
     required: true

src/github-provider.js

@@ -25,14 +25,13 @@ class GitHubProvider {
     } catch (error) {
       core.debug(error);
       core.debug(
-        `octokit.rest.users.getAuthenticated() failed, trying with octokit.rest.apps.getAuthenticated() instead`,
+        `octokit.rest.users.getAuthenticated() failed, assuming the default input GITHUB_TOKEN is a github-actions[bot] token`,
       );
-      const { data: currentApp } =
-        await this.octokit.rest.apps.getAuthenticated();
-      login = currentApp.slug;
       core.debug(
-        "obtained current user via octokit.rest.apps.getAuthenticated()",
+        `since the GITHUB_TOKEN might be 'github-actions[bot]' we will use the default input option of 'handle' instead`,
       );
+      login = core.getInput("handle", { required: true });
+      core.debug(`handle value: ${login}`);
     }
 
     core.debug(`current user: ${login}`);