Bump Python protobuf dependency to 4.x

PiperOrigin-RevId: 576034997

.github/workflows/pytest.yml

@@ -7,6 +7,12 @@ jobs:
       matrix:
         python-version: ["3.8", "3.10", "3.11"]
     steps:
+      # Use 25.x for protobuf 4 compatibility: https://protobuf.dev/support/version-support/#python
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
+        with:
+          version: "25.x"
+
       - name: Checkout
         uses: actions/checkout@v3
 
@@ -15,8 +21,5 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install protoc
-        run: sudo apt install -y protobuf-compiler
-
       - name: Test
         run: ./run_tests.sh

google-fhir-core/setup.py

@@ -103,8 +103,7 @@ def main():
           'antlr4-python3-runtime~=4.9.3',
           'backports.zoneinfo~=0.2.1;python_version<"3.9"',
           'immutabledict~=2.2',
-          # TODO(b/276635321): Fix compatibility issue with protobuf 4.x
-          'protobuf~=3.19',
+          'protobuf~=4.23',
           'python-dateutil~=2.8',
           'stringcase==1.2.0',
       ],

google-fhir-r4/setup.py

@@ -123,8 +123,7 @@ def main():
           f'google-fhir-core~={version}',
           'backports.zoneinfo~=0.2.1;python_version<"3.9"',
           'immutabledict~=2.2',
-          # TODO(b/276635321): Fix compatibility issue with protobuf 4.x
-          'protobuf~=3.19',
+          'protobuf~=4.23',
           'python-dateutil~=2.8',
       ],
       package_data={'google.fhir.r4.data': ['*.tgz']},

google-fhir-views/setup.py

@@ -52,7 +52,7 @@ def main():
           # Pin to numpy 1 to avoid binary compatibility changes in numpy 2.
           'numpy~=1.24',
           'pandas~=1.1',
-          'protobuf~=3.19',
+          'protobuf~=4.23',
           'python-dateutil~=2.8',
           'requests~=2.27',
           'requests-mock~=1.9',