Specified OT version

Author: carlosevia

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Git checkout
         uses: actions/checkout@v2
       - name: Build Bootstrap ⚙️
-        uses: dita-ot/dita-ot-action@master
+        uses: dita-ot/dita-ot-action@4.3
         with:
           install: |
             apt-get update -q
@@ -31,13 +31,13 @@ jobs:
           # -- build: | 
             #  dita -i dita/document.ditamap -o out/html -f html5 --filter=myfilter.ditaval
       - name: Deploy HTML 🚀
-        uses: JamesIves/github-pages-deploy-action@v4
+        uses: JamesIves/github-pages-deploy-action@3.7.1
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           BRANCH: gh-pages # The branch the action should deploy to.
           FOLDER: out/html # The folder the action should deploy.
       - name: Build PDF 🖨️
-        uses: dita-ot/dita-ot-action@master
+        uses: dita-ot/dita-ot-action@4.3
         with:
           install: |
             apt-get update -q