Set explicitly GitHub Actions versions were not set (#1246)

* Set explicitly GitHub Actions versions where not set

* Remove incorrect version strategy

Author: tunetheweb

.github/workflows/generate_chapters.yml

@@ -52,7 +52,7 @@ jobs:
       run: ./src/tools/scripts/run_and_test_website.sh
     - name: Create Pull Request
       id: cpr
-      uses: peter-evans/create-pull-request@v3
+      uses: peter-evans/create-pull-request@v3.1.2
       with:
         title: Update datestamps and generate chapters
         branch-suffix: timestamp

.github/workflows/generate_ebooks.yml

@@ -53,7 +53,7 @@ jobs:
         npm run ebooks
     - name: Create Pull Request
       id: cpr
-      uses: peter-evans/create-pull-request@v3
+      uses: peter-evans/create-pull-request@v3.1.2
       with:
         title: Regenerate Ebooks
         branch-suffix: timestamp

.github/workflows/progress-tracker.yml

@@ -18,7 +18,7 @@ jobs:
     if: github.repository == 'HTTPArchive/almanac.httparchive.org'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/github-script@v3
+      - uses: actions/github-script@v3.0.0
         if: github.event_name == 'workflow_dispatch' || contains(github.event.issue.labels.*.name, env.FILTER_LABEL)
         with:
           script: |