fix(auth-backend): adds missing createAuthProviderExport

Signed-off-by: Simone Corsi <simonecorsi.dev@gmail.com>

.changeset/polite-lions-sell.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-auth-backend': patch
+---
+
+Auth provider now also export createAuthProviderIntegration

plugins/auth-backend/api-report.md

@@ -181,6 +181,22 @@ export type CookieConfigurer = (ctx: {
   secure: boolean;
 };
 
+// Warning: (ae-missing-release-tag) "createAuthProviderIntegration" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
+//
+// @public
+export function createAuthProviderIntegration<
+  TCreateOptions extends unknown[],
+  TResolvers extends {
+    [name in string]: (...args: any[]) => SignInResolver<any>;
+  },
+>(config: {
+  create: (...args: TCreateOptions) => AuthProviderFactory;
+  resolvers?: TResolvers;
+}): Readonly<{
+  create: (...args: TCreateOptions) => AuthProviderFactory;
+  resolvers: Readonly<string extends keyof TResolvers ? never : TResolvers>;
+}>;
+
 // Warning: (ae-missing-release-tag) "createOriginFilter" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
 //
 // @public (undocumented)

plugins/auth-backend/src/providers/index.ts

@@ -28,6 +28,8 @@ export type { GcpIapResult, GcpIapTokenInfo } from './gcp-iap';
 
 export { providers, defaultAuthProviderFactories } from './providers';
 
+export { createAuthProviderIntegration } from './createAuthProviderIntegration';
+
 export type {
   AuthProviderConfig,
   AuthProviderRouteHandlers,