fix(@schematics/angular): address eslint linting failures in test.ts

Closes #22171

(cherry picked from commit 37a7239)

Author: alan-agius4

packages/schematics/angular/application/files/src/test.ts.template

@@ -9,8 +9,8 @@ import {
 
 declare const require: {
   context(path: string, deep?: boolean, filter?: RegExp): {
-    keys(): string[];
     <T>(id: string): T;
+    keys(): string[];
   };
 };
 

packages/schematics/angular/library/files/src/test.ts.template

@@ -10,8 +10,8 @@ import {
 
 declare const require: {
   context(path: string, deep?: boolean, filter?: RegExp): {
-    keys(): string[];
     <T>(id: string): T;
+    keys(): string[];
   };
 };