fix(deps): update dependency transformers to v5

| datasource | package      | from   | to    |
| ---------- | ------------ | ------ | ----- |
| pypi       | transformers | 4.57.1 | 5.5.0 |

Author: dreadnode-renovate-bot[bot]

pyproject.toml

@@ -37,7 +37,7 @@ dependencies = [
 
 [project.optional-dependencies]
 training = [
-    "transformers>=4.41.0,<5.0.0",
+    "transformers>=5.5.0,<5.6.0",
     "datasets>=4.0.0,<5.0.0",
     "pyarrow>=22.0.0,<22.1.0",
 ]