added v1.2.1 to installer manifest

Author: Mrxx99

src/GameJoltLibrary/GameJolt_installer_manifest.yaml

@@ -1,5 +1,12 @@
 AddonId: GameJoltLibrary_555d58fd-a000-401b-972c-9230bed81aed
 Packages:
+  - Version: 1.2.1
+    RequiredApiVersion: 6.5.0
+    ReleaseDate: 2023-07-09
+    PackageUrl: https://github.com/Mrxx99/Playnite.GameJoltLibrary/releases/download/v1.2.1/GameJoltLibrary_555d58fd-a000-401b-972c-9230bed81aed_1_2_1.pext
+    Changelog:
+      - fixed not getting all library games when count greater than 36
+      - added link to GitHub to show up in settings
   - Version: 1.2.0
     RequiredApiVersion: 6.5.0
     ReleaseDate: 2023-06-17