Update Gemini.md to use the curent year on creating new files (#18460)

GEMINI.md

@@ -67,6 +67,9 @@ powerful tool for developers.
   and `packages/core` (Backend logic).
 - **Imports:** Use specific imports and avoid restricted relative imports
   between packages (enforced by ESLint).
+- **License Headers:** For all new source code files (`.ts`, `.tsx`, `.js`),
+  include the Apache-2.0 license header with the current year. (e.g.,
+  `Copyright 2026 Google LLC`). This is enforced by ESLint.
 
 ## Testing Conventions
 

eslint.config.js

@@ -23,6 +23,7 @@ const __dirname = path.dirname(__filename);
 
 // Determine the monorepo root (assuming eslint.config.js is at the root)
 const projectRoot = __dirname;
+const currentYear = new Date().getFullYear();
 
 export default tseslint.config(
   {
@@ -267,8 +268,8 @@ export default tseslint.config(
           ].join('\n'),
           patterns: {
             year: {
-              pattern: '202[5-6]',
-              defaultValue: '2026',
+              pattern: `202[5-${currentYear.toString().slice(-1)}]`,
+              defaultValue: currentYear.toString(),
             },
           },
         },