cli: fix test file matching

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/great-pots-fetch.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': minor
+---
+
+**BREAKING**: The provided Jest configuration now only matches files with a `.test.` infix, rather than any files that is suffixed with `test.<ext>`. In particular this means that files named just `test.ts` will no longer be considered a test file.

packages/cli/config/jest.js

@@ -112,7 +112,7 @@ async function getProjectConfig(targetPath, displayName) {
     },
 
     // A bit more opinionated
-    testMatch: ['**/?(*.)test.{js,jsx,ts,tsx,mjs,cjs}'],
+    testMatch: ['**/*.test.{js,jsx,ts,tsx,mjs,cjs}'],
 
     transformIgnorePatterns: [`/node_modules/(?:${transformIgnorePattern})/`],
   };