Merge 'Add CI for java testing' from Kim Seon Woo

## Purpose of the PR
- Add CI for java testing
## Reference
https://github.com/tursodatabase/limbo/issues/615

Closes #643

.github/workflows/java.yml

@@ -0,0 +1,38 @@
+name: Java Tests
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - v*
+  pull_request:
+    branches:
+      - main
+
+env:
+  working-directory: bindings/java
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: ${{ env.working-directory }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust(stable)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+
+      - name: Run Java tests
+        run: make test

bindings/java/Makefile

@@ -1,6 +1,6 @@
-.PHONY: lib
+.PHONY: test build_test
 
-run_test: build_test
+test: build_test
 	./gradlew test
 
 build_test: