Migrate from the command-exists-promise dependency to command-exists

Signed-off-by: Dominik Henneke <dominik.henneke@sda-se.com>

plugins/scaffolder-backend/package.json

@@ -41,7 +41,7 @@
     "@types/express": "^4.17.6",
     "@types/git-url-parse": "^9.0.0",
     "azure-devops-node-api": "^10.1.1",
-    "command-exists-promise": "^2.0.2",
+    "command-exists": "^1.2.9",
     "compression": "^1.7.4",
     "cors": "^2.8.5",
     "cross-fetch": "^3.0.6",

plugins/scaffolder-backend/src/scaffolder/stages/templater/cookiecutter.test.ts

@@ -18,7 +18,7 @@ const runCommand = jest.fn();
 const commandExists = jest.fn();
 
 jest.mock('./helpers', () => ({ runCommand }));
-jest.mock('command-exists-promise', () => commandExists);
+jest.mock('command-exists', () => commandExists);
 jest.mock('fs-extra');
 
 import { ContainerRunner } from '@backstage/backend-common';

plugins/scaffolder-backend/src/scaffolder/stages/templater/cookiecutter.ts

@@ -21,7 +21,7 @@ import path from 'path';
 import { runCommand } from './helpers';
 import { TemplaterBase, TemplaterRunOptions } from './types';
 
-const commandExists = require('command-exists-promise');
+const commandExists = require('command-exists');
 
 export class CookieCutter implements TemplaterBase {
   private readonly containerRunner: ContainerRunner;