fix: revert grpc resolvers to upstream main (keep evaluation.v2)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Simon Schrottner <simon.schrottner@gmail.com>

Author: aepfli

providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/grpc.py

@@ -23,7 +23,7 @@
     TypeMismatchError,
 )
 from openfeature.flag_evaluation import FlagResolutionDetails, FlagValueType, Reason
-from openfeature.schemas.protobuf.flagd.evaluation.v1 import (
+from openfeature.schemas.protobuf.flagd.evaluation.v2 import (
     evaluation_pb2,
     evaluation_pb2_grpc,
 )
@@ -92,6 +92,7 @@ def _generate_channel(self, config: Config) -> grpc.Channel:
                                 "name": [
                                     {"service": "flagd.sync.v1.FlagSyncService"},
                                     {"service": "flagd.evaluation.v1.Service"},
+                                    {"service": "flagd.evaluation.v2.Service"},
                                 ],
                                 "retryPolicy": {
                                     "maxAttempts": 3,

providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/connector/grpc_watcher.py

@@ -76,6 +76,7 @@ def _generate_channel(self, config: Config) -> grpc.Channel:
                                 "name": [
                                     {"service": "flagd.sync.v1.FlagSyncService"},
                                     {"service": "flagd.evaluation.v1.Service"},
+                                    {"service": "flagd.evaluation.v2.Service"},
                                 ],
                                 "retryPolicy": {
                                     "maxAttempts": 3,