#514: add `datastore.put` API, remove `Entity.save'

* chore: Update gapic-generator-python to v1.11.3

PiperOrigin-RevId: 546899192

Source-Link: googleapis/googleapis@e6b1691

Source-Link: googleapis/googleapis-gen@0b3917c
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiMGIzOTE3YzQyMWNiZGE3ZmNiNjcwOTJlMTZjMzNmM2VhNDZmNGJjNyJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Source-Link: googleapis/synthtool@0ddbff8
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:bced5ca77c4dda0fd2f5d845d4035fc3c5d3d6b81f245246a36aee114970082b

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

* chore(deps): update all dependencies

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

)

Source-Link: googleapis/synthtool@7804ade
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:eede5672562a32821444a8e803fb984a6f61f2237ea3de229d2de24453f4ae7d

Without this PR, tests fail because warnings are treated as errors. See
https://github.com/googleapis/proto-plus-python/issues/547 for follow up
work related to the warning.

```
________________________________________________________________________________________________________________________ test_serialize_to_dict_float_precision __________________________________________________________________________________________________________________________

    def test_serialize_to_dict_float_precision():
        class Squid(proto.Message):
            mass_kg = proto.Field(proto.FLOAT, number=1)
    
        s = Squid(mass_kg=3.14159265)
    
>       s_dict = Squid.to_dict(s, float_precision=3)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

tests/test_message.py:336: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
proto/message.py:610: in to_dict
    return MessageToDict(
.nox/unit-3-13-implementation-upb/lib/python3.13/site-packages/google/protobuf/json_format.py:158: in MessageToDict
    printer = _Printer(
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <google.protobuf.json_format._Printer object at 0x7fb6d1f15940>, preserving_proto_field_name = True, use_integers_for_enums = True, descriptor_pool = None, float_precision = 3, always_print_fields_with_no_presence = True

    def __init__(
        self,
        preserving_proto_field_name=False,
        use_integers_for_enums=False,
        descriptor_pool=None,
        float_precision=None,
        always_print_fields_with_no_presence=False,
    ):
      self.always_print_fields_with_no_presence = (
          always_print_fields_with_no_presence
      )
      self.preserving_proto_field_name = preserving_proto_field_name
      self.use_integers_for_enums = use_integers_for_enums
      self.descriptor_pool = descriptor_pool
      if float_precision:
>       warnings.warn(
            'float_precision option is deprecated for json_format. '
            'This will turn into error in 7.34.0, please remove it '
            'before that.'
        )
E       UserWarning: float_precision option is deprecated for json_format. This will turn into error in 7.34.0, please remove it before that.

.nox/unit-3-13-implementation-upb/lib/python3.13/site-packages/google/protobuf/json_format.py:195: UserWarning
```

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

…548)