try manually...

Author: ktoso

.github/workflows/pull_request.yml

@@ -26,21 +26,24 @@ jobs:
       fail-fast: true
       matrix:
         swift_version: ['6.1.2']
+        os_version: ['jammy']
         jdk_vendor: ['corretto']
     env:
       ADDITIONAL_DOCC_ARGUMENTS: ''
     steps:
       - uses: actions/checkout@v4
       - name: Prepare CI Environment
         uses: ./.github/actions/prepare_env
-      - name: Install Swiftly 
-        run: ./.github/scripts/install_swiftly.sh
-        env:
-          SWIFT_VERSION: "${{ matrix.swift_version }}"
       - name: Run documentation check
         run: |
-          which curl || (apt -q update && apt -yq install curl)
-          curl -s --retry 3 https://raw.githubusercontent.com/swiftlang/github-workflows/refs/heads/main/.github/workflows/scripts/check-docs.sh | bash
+          cat <<EOF >> Package.swift
+  
+          package.dependencies.append(
+            .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.0.0")
+          )
+          EOF
+          which swift
+          swift package plugin generate-documentation --target "SwiftJavaDocumentation" --warnings-as-errors --analyze
 
   test-java:
     name: Test (Java) (${{ matrix.os_version }} swift:${{ matrix.swift_version }} jdk:${{matrix.jdk_vendor}})