Merge 'bindings/java: Add support for publishing to Maven Central' from Kim Seon Woo

## Purpose
- Deploy `tech.turso:turso:<version>` to maven central so that users can
easily use java bindings
  - For example :
https://repo1.maven.org/maven2/io/github/seonwkim/turso/0.0.1/
## Requirements
- [x] Add the following github secrets.
  - [x] MAVEN_CENTRAL_USERNAME
  - [x] MAVEN_CENTRAL_PASSWORD
  - [x] GPG_PRIVATE_KEY
  - [x] GPG_PASSPHRASE
- [ ] Namespace `tech.turso` must be registered at maven central
- [ ] GPG key registration to key servers
- Notes
  - Retrieve MAVEN_CENTRAL_USERNAME and MAVEN_CENTRAL_PASSWORD from
[maven central](https://central.sonatype.com/usertoken)
  - GPG keys should be registered. You should distribute your keys to
designated(maven central supported) servers
    -  Refer to [GPG key related docs](https://central.sonatype.org/publ
ish/requirements/gpg/#distributing-your-public-key)
    - Btw, I used `keyserver.ubuntu.com` key server while testing
### [Maven Central Username &
Password](https://central.sonatype.com/usertoken)
<img width="2878" height="1338" alt="image"
src="https://github.com/user-
attachments/assets/03e6f967-a7f6-46b8-aef5-d15772bd9eea" />
### [Maven Central
Namespace](https://central.sonatype.com/publishing/namespaces)
<img width="1424" height="456" alt="image" src="https://github.com/user-
attachments/assets/8c0f4f17-bf5a-4c6a-bc47-748d86cd1f1a" />
## Future Works
- Currently, we depend on gradle.properties to determine the version of
our dependency and it's cumbersome to always change the version
manually. Let's find a better solution.

Closes #3624

.github/workflows/java-publish.yml

@@ -0,0 +1,143 @@
+name: Publish Java Bindings to Maven Central
+
+on:
+  # Manually trigger the workflow
+  workflow_dispatch:
+
+env:
+  working-directory: bindings/java
+
+jobs:
+  # Build native libraries for each platform
+  build-natives:
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            make-target: linux_x86
+            artifact-name: linux-x86_64
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            make-target: macos_x86
+            artifact-name: macos-x86_64
+          - os: macos-latest
+            target: aarch64-apple-darwin
+            make-target: macos_arm64
+            artifact-name: macos-arm64
+          - os: ubuntu-latest
+            target: x86_64-pc-windows-gnu
+            make-target: windows
+            artifact-name: windows-x86_64
+
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 30
+
+    defaults:
+      run:
+        working-directory: ${{ env.working-directory }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Verify and install Rust target
+        run: |
+          echo "Installing target: ${{ matrix.target }}"
+          rustup target add ${{ matrix.target }}
+          echo "Installed targets:"
+          rustup target list --installed
+          echo "Rust version:"
+          rustc --version
+
+      - name: Install cross-compilation tools (Windows on Linux)
+        if: matrix.target == 'x86_64-pc-windows-gnu'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mingw-w64
+
+      - name: Build native library
+        run: make ${{ matrix.make-target }}
+
+      - name: Verify build output
+        run: |
+          echo "Build completed for ${{ matrix.target }}"
+          ls -lah libs/
+          find libs/ -type f
+
+      - name: Upload native library
+        uses: actions/upload-artifact@v4
+        with:
+          name: native-${{ matrix.artifact-name }}
+          path: ${{ env.working-directory }}/libs/
+          retention-days: 1
+
+  # Publish to Maven Central with all native libraries
+  publish:
+    needs: build-natives
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    defaults:
+      run:
+        working-directory: ${{ env.working-directory }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Install Rust (for test builds)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Download all native libraries
+        uses: actions/download-artifact@v4
+        with:
+          pattern: native-*
+          path: ${{ env.working-directory }}/libs-temp
+          merge-multiple: true
+
+      - name: Organize native libraries
+        run: |
+          # Move downloaded artifacts to libs directory
+          rm -rf libs
+          mv libs-temp libs
+          echo "Native libraries collected:"
+          ls -R libs/
+
+      - name: Build test natives
+        run: make build_test
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Publish to Maven Central
+        env:
+          MAVEN_UPLOAD_USERNAME: ${{ secrets.MAVEN_UPLOAD_USERNAME }}
+          MAVEN_UPLOAD_PASSWORD: ${{ secrets.MAVEN_UPLOAD_PASSWORD }}
+          MAVEN_SIGNING_KEY: ${{ secrets.MAVEN_SIGNING_KEY }}
+          MAVEN_SIGNING_PASSPHRASE: ${{ secrets.MAVEN_SIGNING_PASSPHRASE }}
+        run: |
+          echo "Building, signing, and publishing to Maven Central..."
+          ./gradlew clean publishToMavenCentral --no-daemon --stacktrace
+
+      - name: Upload bundle artifact
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: maven-central-bundle
+          path: ${{ env.working-directory }}/build/maven-central/*.zip
+          retention-days: 7