Change Javadocs release system

Signed-off-by: Alpha <dev@alpha93.kr>

.github/workflows/release.yml

@@ -41,6 +41,14 @@ jobs:
           ref: ${{ steps.setup.outputs.branch }}
           token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Checkout javadocs
+        uses: actions/checkout@v4
+        if: startsWith(github.ref_name, 'ver/') || startsWith(github.ref_name, 'dev/')
+        with:
+          repository: PlazmaMC/Javadocs
+          path: jdmain
+          token: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Validate Gradle Wrapper
         uses: gradle/wrapper-validation-action@v1
 
@@ -83,6 +91,11 @@ jobs:
           git add . && git commit -m "Update Javadocs"
           git push
 
+          cd ../jdmain
+          git submodule update
+          git add . && git commit -m "Update Javadocs"
+          git push
+
       - name: Publish Packages
         if: startsWith(github.ref_name, 'ver/') || startsWith(github.ref_name, 'dev/')
         run: |