Complete add static analysis on dinov2 tutorial.

Context

This merge request creates a tutorial employing the notions of graph static analysis with the Dinov2 model.

• Create a basic notebook
• Add illustrations and text in the notebook
• Add the notebook to the unit test pipeline (cf. https://gitlab.eclipse.org/eclipse/aidge/aidge/-/blob/main/.gitlab/ci/test.gitlab-ci.yml?ref_type=heads#L15)

It replaces an older MR due to lack of writing permissions (original MR).

Modified files

• dinov2.ipynb, completed the different sections with explanatory text and added comments in the code;
• aidge/.gitlab/ci/test.gitlab-ci.yml, added the analysis/dinov2.ipynb notebook reference to the unit tests CI.

Detailed major modifications

No major modifications were made to the originally proposed notebook; only a few comments and clarifications were added.