rename GameShell.sh to gameshell.sh in latest_game_archive.yml and tag_release.yml

Author: phyver

.github/workflows/latest_game_archive.yml

@@ -30,4 +30,4 @@ jobs:
           title: "Latest game archive"
           files: |
             LICENSE
-            GameShell.sh
+            gameshell.sh

.github/workflows/tag_release.yml

@@ -26,4 +26,4 @@ jobs:
           prerelease: false
           files: |
             LICENSE
-            GameShell.sh
+            gameshell.sh