chore(stack): upgrade stack

.github/workflows/ci.yml

@@ -11,11 +11,13 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]  # pypy-3.7 is supported but a bit slow.
+        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11", "pypy-3.8", "pypy-3.9" ]
         regex: [ "0", "1" ]
         exclude:
           # regex module doesn't play well with pypy and unicode.
-          - python-version: "pypy-3.7"
+          - python-version: "pypy-3.8"
+            regex: "1"
+          - python-version: "pypy-3.9"
             regex: "1"
           # test regex module only with Python 3.9.
           - python-version: "3.7"
@@ -55,7 +57,7 @@ jobs:
           REBULK_REGEX_ENABLED: ${{ matrix.regex }}
 
       - name: Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v3
 
   commitlint:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
@@ -271,11 +273,11 @@ jobs:
           PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
 
       - name: Merge master to develop
-        uses: robotology/gh-action-nightly-merge@v1.3.3
+        uses: robotology/gh-action-nightly-merge@v1.4.0
         with:
           stable_branch: 'master'
           development_branch: 'develop'
           allow_ff: true
           user_name: github-actions
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/mkdocs.yml

@@ -7,8 +7,8 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
         with:
           python-version: 3.x