revert

Author: parthea

.github/workflows/tests.yaml

@@ -27,7 +27,7 @@ jobs:
         # Use python 3.10 for docs to match the version for the sphinx plugin
         # https://github.com/googleapis/synthtool/pull/1891
         with:
-          python-version: "3.13"
+          python-version: "3.10"
           cache: 'pip'
       - name: Install nox.
         run: python -m pip install nox
@@ -42,7 +42,7 @@ jobs:
         # Use python 3.10 for docs to match the version for the sphinx plugin
         # https://github.com/googleapis/synthtool/pull/1891
         with:
-          python-version: "3.13"
+          python-version: "3.10"
           cache: 'pip'
       - name: Install nox.
         run: python -m pip install nox
@@ -77,7 +77,7 @@ jobs:
 
     # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
     # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python "${{ matrix.python }}"
@@ -169,7 +169,7 @@ jobs:
 
     # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
     # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python "${{ matrix.python }}"
@@ -273,7 +273,7 @@ jobs:
 
     # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
     # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python }}
@@ -298,7 +298,7 @@ jobs:
 
     # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
     # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python }}