Add how-to-update section to doc and deprecation tests

• Extended how-to-update section by changes from !104 (merged)
• Add tests t make sure that DeprecationWarnings are raised properly

added P1 Statusdoing Unexpected labels

changed iteration to Sprint Mar 20, 2023 - Apr 2, 2023

assigned to @henrik

marked this issue as related to #87 (closed)

added (C label

set weight to 4

marked this issue as related to #89 (closed)

closed

removed Statusdoing label

marked the checklist item Extended how-to-update section by changes from !104 (merged) as completed

marked the checklist item Add tests t make sure that DeprecationWarnings are raised properly as completed

mentioned in commit 0e179aba

mentioned in commit 1a22c5db