Update data pack to Minecraft 1.21.5 and add automated release workflow

.github/workflows/release.yml

@@ -0,0 +1,23 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Create zip
+        run: zip -r BoxedDataPack.zip BoxedDataPack/
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: BoxedDataPack.zip
+          generate_release_notes: true

.gitignore

@@ -36,3 +36,5 @@ crashlytics-build.properties
 fabric.properties
 .idea/httpRequests
 .idea/caches/build_file_checksums.ser
+/.project
+*.zip

README.md

@@ -1,4 +1,4 @@
 # BoxedDataPack
 Advancement Datapack for Boxed Addon
 
-The datapack is the zip file in this repo and should be placed with other datapacks in the main world folder.
+Download the latest `BoxedDataPack.zip` from the [Releases page](../../releases/latest) and place it in your world's `datapacks/` folder.