Bump py-actions/py-dependency-install from 3 to 4 (#483)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Pre-Commit hooks
       uses: pre-commit/[email protected]
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements-dev.txt
     - name: Install itself
@@ -66,7 +66,7 @@ jobs:
         cache: 'pip'
         cache-dependency-path: '**/requirements*.txt'
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements-dev.txt
     - name: Run unittests