Bump github actions to J17, still targeting J8 publication

Author: LexManos

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
   build:
     uses: MinecraftForge/SharedActions/.github/workflows/gradle.yml@main
     with:
-      java: 8
+      java: 17
       gradle_tasks: "publish"
       artifact_name: "mergetool"
     secrets: