[feat] Remove python 3.9 from CI in v0.7.0 release #1361
Description
Description
In v0.7.0 we no longer support python 3.9 namely so that we can support langchain 1.x (which dropped support for py 3.9).
Why is this needed
To align CI with latest change sets.
Implementation details
Remove from an CI matrices.
End result
CI should run without consideration for python 3.9