Fix email issue with auths

Author: cristianrgreco

packages/testcontainers/src/container-runtime/auth/auths.ts

@@ -1,6 +1,6 @@
 import { RegistryAuthLocator } from "./registry-auth-locator";
 import { registryMatches } from "./registry-matches";
-import { Auth, AuthConfig, ContainerRuntimeConfig } from "./types";
+import { Auth, AuthConfig, ContainerRuntimeConfig, UsernamePasswordAuthConfig } from "./types";
 
 export class Auths implements RegistryAuthLocator {
   public getName(): string {
@@ -13,7 +13,7 @@ export class Auths implements RegistryAuthLocator {
       return undefined;
     }
 
-    const authConfig: Partial<AuthConfig> = { registryAddress: registry };
+    const authConfig: Partial<UsernamePasswordAuthConfig> = { registryAddress: registry };
 
     if (auth.email) {
       authConfig.email = auth.email;

packages/testcontainers/src/container-runtime/auth/types.ts

@@ -11,6 +11,7 @@ export type UsernamePasswordAuthConfig = {
   registryAddress: string;
   username: string;
   password: string;
+  email?: string;
 };
 
 export type IdentityTokenAuthConfig = {