ci: update release name in GitHub workflow

Remove testing markers from release name to prepare for production deployment

.github/workflows/main.yml

@@ -105,7 +105,7 @@ jobs:
 
     env:
       GH_TOKEN: ${{ github.token }}
-      RELEASE_NAME: "!!TESTING!! GKI Kernels With WKSU & SUSFS v1.5.12 !!!TESTING!!!"
+      RELEASE_NAME: "GKI Kernels With WKSU & SUSFS v1.5.12"
       RELEASE_BODY: ""
     steps:
       # # - name: Maximize Build Space