Bump protobuf 4.25.8 → 5.29.6 and regenerate gRPC bindings

Update grpcio/grpcio-tools to 1.74.0/1.71.2, google-cloud-pubsub, and
tink to versions compatible with protobuf 5.x. Relax google-cloud-kms,
grpcio-health-checking, grpcio-reflection, and grpcio-status from exact
pins to floor constraints. Unify the grpcio platform split into a
single pin.

google-cloud-logging is not bumped here: it (along with
google-cloud-secret-manager, google-cloud-appengine-logging, and
google-cloud-audit-log) was dropped as an unused Discord-era dependency
by #391 while this branch was in flight, so there's nothing left to
upgrade.

Regenerate all *_pb2.py files via ./gen-protos.sh.

Test plan:
./run-tests.sh

Author: reitblatt

CHANGELOG.md

@@ -32,6 +32,13 @@ For more information about each release including git tags and artifacts, see [R
 - Event stream shows sensible defaults so first-load isn't empty ([#297](https://github.com/roostorg/osprey/pull/297) by [@haileyok](https://github.com/haileyok))
 - Replace `react-scripts` with `rsbuild`/`rspack` for UI builds ([#235](https://github.com/roostorg/osprey/pull/235) by [@chimosky](https://github.com/chimosky))
 - Migrate from npm to pnpm via Corepack ([#252](https://github.com/roostorg/osprey/pull/252) by [@haileyok](https://github.com/haileyok))
+- Upgrade `protobuf` from 4.25.8 to 5.29.6 ([#317](https://github.com/roostorg/osprey/issues/317), [#349](https://github.com/roostorg/osprey/pull/349) by [@reitblatt](https://github.com/reitblatt)); as a downstream consequence, also upgrade
+  - `grpcio` from 1.49.1/1.53.x to 1.74.0
+  - `grpcio-tools` from 1.49.1/1.53.x to 1.71.2
+  - `google-cloud-pubsub` from 2.15.2 to 2.38.0
+  - `tink` from 1.9.0 to 1.15.0
+  - relax `google-cloud-kms`, `grpcio-health-checking`, `grpcio-reflection`, and `grpcio-status` from exact pins to floor constraints
+  - regenerate all gRPC bindings
 
 ### Fixed
 

osprey_rpc/src/osprey/rpc/actions/v1/action_pb2.py

@@ -1,4 +1,24 @@
 # Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
 """Client and server classes corresponding to protobuf-defined services."""
 import grpc
+import warnings
 
+
+GRPC_GENERATED_VERSION = '1.71.2'
+GRPC_VERSION = grpc.__version__
+_version_not_supported = False
+
+try:
+    from grpc._utilities import first_version_is_lower
+    _version_not_supported = first_version_is_lower(GRPC_VERSION, GRPC_GENERATED_VERSION)
+except ImportError:
+    _version_not_supported = True
+
+if _version_not_supported:
+    raise RuntimeError(
+        f'The grpc package installed is at version {GRPC_VERSION},'
+        + f' but the generated code in osprey/rpc/actions/v1/action_pb2_grpc.py depends on'
+        + f' grpcio>={GRPC_GENERATED_VERSION}.'
+        + f' Please upgrade your grpc module to grpcio>={GRPC_GENERATED_VERSION}'
+        + f' or downgrade your generated code using grpcio-tools<={GRPC_VERSION}.'
+    )

osprey_rpc/src/osprey/rpc/actions/v1/action_pb2_grpc.py

@@ -1,4 +1,24 @@
 # Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
 """Client and server classes corresponding to protobuf-defined services."""
 import grpc
+import warnings
 
+
+GRPC_GENERATED_VERSION = '1.71.2'
+GRPC_VERSION = grpc.__version__
+_version_not_supported = False
+
+try:
+    from grpc._utilities import first_version_is_lower
+    _version_not_supported = first_version_is_lower(GRPC_VERSION, GRPC_GENERATED_VERSION)
+except ImportError:
+    _version_not_supported = True
+
+if _version_not_supported:
+    raise RuntimeError(
+        f'The grpc package installed is at version {GRPC_VERSION},'
+        + f' but the generated code in osprey/rpc/actions/v1/action_types_pb2_grpc.py depends on'
+        + f' grpcio>={GRPC_GENERATED_VERSION}.'
+        + f' Please upgrade your grpc module to grpcio>={GRPC_GENERATED_VERSION}'
+        + f' or downgrade your generated code using grpcio-tools<={GRPC_VERSION}.'
+    )