Fixed lint errors

src/changedFiles.ts

@@ -1,5 +1,6 @@
 import * as core from '@actions/core'
-import {Octokit, RestEndpointMethodTypes} from '@octokit/rest'
+import {Octokit} from '@octokit/rest'
+import type {RestEndpointMethodTypes} from '@octokit/rest'
 import * as path from 'path'
 
 import {DiffResult} from './commitSha'

src/main.ts

@@ -278,7 +278,7 @@ export async function run(): Promise<void> {
   core.debug(`Inputs: ${JSON.stringify(inputs, null, 2)}`)
 
   if (inputs.token && env.GITHUB_EVENT_PULL_REQUEST_NUMBER) {
-    const unsupportedInputs: Array<keyof Inputs> = [
+    const unsupportedInputs: (keyof Inputs)[] = [
       'sha',
       'baseSha',
       'since',