build: add check for management-api modification

[ndr-brt]

What this PR changes/adds

Adds a workflow that checks:

• if no changes done on the management api version.json file
  • check if there are difference from a generated openapi file and the one published on github pages

Why it does that

Briefly state why the change was necessary.

Further notes

• please note that at this moment this check will fail all the time, because the api that are published on github pages are published with the EDC version, and not with their version (this need to change), so please not merge this PR yet

Linked Issue(s)

Closes #4182

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