chore(deps): update all dependencies (#742)

* chore(deps): update all dependencies

* revert

Co-authored-by: Anthonios Partheniou <[email protected]>

Author: renovate-bot

.github/workflows/integration-tests-against-emulator.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
       - name: Setup Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: 3.8
       - name: Install nox

samples/samples/requirements-test.txt

@@ -1,4 +1,4 @@
 pytest==7.1.2
 pytest-dependency==0.5.1
 mock==4.0.3
-google-cloud-testutils==1.3.1
+google-cloud-testutils==1.3.3

samples/samples/requirements.txt

@@ -1,2 +1,2 @@
-google-cloud-spanner==3.14.0
+google-cloud-spanner==3.16.0
 futures==3.3.0; python_version < "3"