nginx: don't include the OGO header in the API rewrite calls

[freesteph]

du commit 📖 :

OGO has a mechanism to prevent request looping on their server: if a request comes back with a certain header stamped (X-OGO-Shield), they abort the request with a code 508 since it's come up before.

In our case, we're fine because it's not exactly the same request:

1. the backend receives a call on `mobilic.beta.gouv.fr/api`
2. re-issues the same request on `api.mobilic.beta.gouv.fr`.

The engineer at OGO (thanks Arnaud) suggested removing this custom header to make sure OGO doesn't break the request chain with a 508 error.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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0.0% Coverage on New Code
0.0% Duplication on New Code

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[tristanrobert]

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