Bump peaceiris/actions-gh-pages from 3 to 4

.github/workflows/asciidoc.yml

@@ -1,58 +1,58 @@
-name: AsciiDoc Documentation
-
-on:
-  workflow_dispatch:
-  pull_request:
-  merge_group:
-  push:
-    branches:
-      - 'master'
-    tags:
-      - '[0-9]+.[0-9]+.[0-9]+*'
-
-jobs:
-  build-doc:
-    runs-on: ubuntu-latest
-    name: Build AsciiDoc documentation
-    steps:
-      - name: Checkout into ./repo
-        uses: actions/checkout@v4
-        with:
-          path: repo
-      - name: Extract revision info
-        id: rev_info
-        run: |
-          cd repo
-          echo ::set-output name=date::$(git show -s --format=%ci ${{ github.sha }})
-          REV_TAG=$(git tag --list '*.*.*' --points-at ${{ github.sha }})
-          REV_VERSION=$(if [[ $REV_TAG ]]; then echo "$REV_TAG"; else echo "${{ github.sha }}"; fi)
-          echo ::set-output name=tag::"$REV_TAG"
-          echo ::set-output name=version::"$REV_VERSION"
-          cd ..
-      - name: Process AsciiDoc from ./repo to ./public
-        uses: tonynv/asciidoctor-action@v2
-        with:
-          program: asciidoctor -D public -b html5 -o index.html -a toc=left -a revdate="${{ steps.rev_info.outputs.date }}" -a revnumber="${{ steps.rev_info.outputs.version }}" -a source-highlighter=rouge repo/README.adoc
-      - name: Upload AsciiDoc documentation
-        uses: actions/upload-artifact@v4
-        with:
-          name: docs-${{ github.sha }}
-          path: public
-          retention-days: 3
-  publish-doc:
-    runs-on: ubuntu-latest
-    name: Deploy to GitHub Pages
-    if: startsWith(github.event.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
-    needs: build-doc
-    environment: github-pages-branch
-    steps:
-      - name: Download documentation artifact into ./public
-        uses: actions/download-artifact@v4
-        with:
-          name: docs-${{ github.sha }}
-          path: public
-      - name: Push content of ./public
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: public
+name: AsciiDoc Documentation
+
+on:
+  workflow_dispatch:
+  pull_request:
+  merge_group:
+  push:
+    branches:
+      - 'master'
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+*'
+
+jobs:
+  build-doc:
+    runs-on: ubuntu-latest
+    name: Build AsciiDoc documentation
+    steps:
+      - name: Checkout into ./repo
+        uses: actions/checkout@v4
+        with:
+          path: repo
+      - name: Extract revision info
+        id: rev_info
+        run: |
+          cd repo
+          echo ::set-output name=date::$(git show -s --format=%ci ${{ github.sha }})
+          REV_TAG=$(git tag --list '*.*.*' --points-at ${{ github.sha }})
+          REV_VERSION=$(if [[ $REV_TAG ]]; then echo "$REV_TAG"; else echo "${{ github.sha }}"; fi)
+          echo ::set-output name=tag::"$REV_TAG"
+          echo ::set-output name=version::"$REV_VERSION"
+          cd ..
+      - name: Process AsciiDoc from ./repo to ./public
+        uses: tonynv/asciidoctor-action@v2
+        with:
+          program: asciidoctor -D public -b html5 -o index.html -a toc=left -a revdate="${{ steps.rev_info.outputs.date }}" -a revnumber="${{ steps.rev_info.outputs.version }}" -a source-highlighter=rouge repo/README.adoc
+      - name: Upload AsciiDoc documentation
+        uses: actions/upload-artifact@v4
+        with:
+          name: docs-${{ github.sha }}
+          path: public
+          retention-days: 3
+  publish-doc:
+    runs-on: ubuntu-latest
+    name: Deploy to GitHub Pages
+    if: startsWith(github.event.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
+    needs: build-doc
+    environment: github-pages-branch
+    steps:
+      - name: Download documentation artifact into ./public
+        uses: actions/download-artifact@v4
+        with:
+          name: docs-${{ github.sha }}
+          path: public
+      - name: Push content of ./public
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: public