[CHORE] argilla: Move version to specific file (#5169)

# Description
<!-- Please include a summary of the changes and the related issue.
Please also include relevant motivation and context. List any
dependencies that are required for this change. -->

This PR aligns how the package version is defined with the rest of the
packages. A new `_version.py` module is defined including the version.
This can help when bumping versions automatically.


**Type of change**
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PR according to the type of change -->

- Refactor (change restructuring the codebase without changing
functionality)

**How Has This Been Tested**
<!-- Please add some reference about how your feature has been tested.
-->

**Checklist**
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account -->

- I added relevant documentation
- I followed the style guidelines of this project
- I did a self-review of my code
- I made corresponding changes to the documentation
- I confirm My changes generate no new warnings
- I have added tests that prove my fix is effective or that my feature
works
- I have added relevant notes to the CHANGELOG.md file (See
https://keepachangelog.com/)

argilla/pyproject.toml

@@ -41,7 +41,7 @@ distribution = true
 
 [tool.pdm.version]
 source = "file"
-path = "src/argilla/__init__.py"
+path = "src/argilla/_version.py"
 
 [tool.pdm.dev-dependencies]
 dev = [

argilla/src/argilla/__init__.py

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+from argilla._version import __version__  # noqa
 
 from argilla.client import *  # noqa
 from argilla.datasets import *  # noqa
@@ -21,6 +22,3 @@
 from argilla.responses import *  # noqa
 from argilla.records import *  # noqa
 from argilla.vectors import *  # noqa
-
-
-__version__ = "2.0.0dev0"

argilla/src/argilla/_version.py

@@ -0,0 +1,15 @@
+# Copyright 2024-present, Argilla, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__version__ = "2.0.0dev0"