Chore: Upgrade to Angular v18

Chore: Upgrade to Python 3.12
Chore: Upgrade to psycopg3

bookie/src/app/core/auth.interceptor.spec.ts

@@ -0,0 +1,16 @@
+import { HttpInterceptorFn } from '@angular/common/http';
+import { TestBed } from '@angular/core/testing';
+
+import { authInterceptor } from './auth.interceptor';
+
+describe('authInterceptor', () => {
+  const interceptor: HttpInterceptorFn = (req, next) => TestBed.runInInjectionContext(() => authInterceptor(req, next));
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+  });
+
+  it('should be created', () => {
+    expect(interceptor).toBeTruthy();
+  });
+});