Fix KFP dependency conflict in knowledge-tuning pipeline

Bump kfp and kfp-kubernetes to >=2.16.1 so pip can resolve kfp-components@main, which unblocks the Notebook Tests CI validation.

Author: CathalOConnorRH

examples/knowledge-tuning/Kubeflow_Pipeline/README.md

@@ -107,8 +107,8 @@ Source repository: `red-hat-data-services/pipelines-components`
 
    Run the following commands to install these required packages:
 
-   - `kfp==2.15.2`
-   - `kfp-kubernetes>=2.15.2`
+   - `kfp>=2.16.1`
+   - `kfp-kubernetes>=2.16.1`
    - `kfp-components @ git+https://github.com/red-hat-data-services/pipelines-components@main`
 
    ```bash

examples/knowledge-tuning/Kubeflow_Pipeline/pyproject.toml

@@ -5,7 +5,7 @@ description = "Kubeflow pipeline for the Knowledge Tuning workflow"
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
-    "kfp-kubernetes>=2.15.2",
-    "kfp==2.15.2",
+    "kfp-kubernetes>=2.16.1",
+    "kfp>=2.16.1",
     "kfp-components @ git+https://github.com/red-hat-data-services/pipelines-components@main",
 ]