Fix tiny typo in docs

[jamilraichouni]

capella-polarion/docs/source/pipeline templates/gitlab.rst

Line 15 in 4ec9751

We highly recommend using the diagram cache as a separate job and defined it as a dependency in our template for that

should read

We highly recommend using the diagram cache as a separate job and define it as a dependency in our template for that 

define instead of dcefined

[ewuerger]

You meant defined, hehe. Thank you for the info.