ci: fix release workflow for tagged releases

Author: jamjet3

.github/workflows/release.yml

@@ -1,26 +1,42 @@
-name: Release
+name: release
+
 on:
   push:
     tags:
-      - 'v*'
+      - 'v*'          # e.g. v1.1.3, v2.0.0 etc
+
 permissions:
   contents: write
+
 jobs:
   release:
     runs-on: ubuntu-latest
+
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-java@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: '21'
-      - run: ./gradlew clean uberJar --no-daemon
-      - run: |
+
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+
+      - name: Build uberJar
+        run: ./gradlew --no-daemon clean uberJar
+
+      - name: Generate checksums
+        run: |
           cd build/libs
           sha256sum *.jar > checksums.txt
-      - uses: softprops/action-gh-release@v2
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
         with:
           generate_release_notes: true
           files: |