chore(catalog): add changesets; build api reports

Signed-off-by: Benjamin Janssens <benji.janssens@gmail.com>

.changeset/legal-lemons-attend.md

@@ -0,0 +1,5 @@
+---
+'@backstage/integration': minor
+---
+
+Added support for limiting GithubAppCredentialsMux to specific apps

.changeset/sharp-carrots-spend.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-github': minor
+---
+
+Added support for discovery by app

packages/integration/report.api.md

@@ -669,7 +669,7 @@ export type GithubAppConfig = {
 
 // @public
 export class GithubAppCredentialsMux {
-  constructor(config: GithubIntegrationConfig);
+  constructor(config: GithubIntegrationConfig, appIds?: number[]);
   // (undocumented)
   getAllInstallations(): Promise<
     RestEndpointMethodTypes['apps']['listInstallations']['response']['data']