feat(api): iterate sequentially

Promise.all utilise toutes les connections à la base de données, ce qui
créé des ralentissements pour les autres requêtes.

Faire les requêtes de manières séquentielle permettra d'utiliser une
unique connection, ce qui aura pour conséquence de plus ralentir nos
utilisateurs

api/src/prescription/campaign/domain/usecases/create-campaigns.js

@@ -8,22 +8,21 @@ const createCampaigns = async function ({
   userRepository,
   organizationRepository,
 }) {
-  const enrichedCampaignsData = await Promise.all(
-    campaignsToCreate.map(async (campaign) => {
-      await _checkIfOwnerIsExistingUser(userRepository, campaign.ownerId);
-      await _checkIfOrganizationExists(organizationRepository, campaign.organizationId);
+  const enrichedCampaignsData = [];
+  for (const campaign of campaignsToCreate) {
+    await _checkIfOwnerIsExistingUser(userRepository, campaign.ownerId);
+    await _checkIfOrganizationExists(organizationRepository, campaign.organizationId);
 
-      const generatedCampaignCode = await codeGenerator.generate(campaignAdministrationRepository);
-      const campaignCreator = await campaignCreatorRepository.get(campaign.organizationId);
-
-      return campaignCreator.createCampaign({
-        ...campaign,
-        type: CampaignTypes.ASSESSMENT,
-        code: generatedCampaignCode,
-      });
-    }),
-  );
+    const generatedCampaignCode = await codeGenerator.generate(campaignAdministrationRepository);
+    const campaignCreator = await campaignCreatorRepository.get(campaign.organizationId);
 
+    const campaignToCreate = await campaignCreator.createCampaign({
+      ...campaign,
+      type: CampaignTypes.ASSESSMENT,
+      code: generatedCampaignCode,
+    });
+    enrichedCampaignsData.push(campaignToCreate);
+  }
   return campaignAdministrationRepository.save(enrichedCampaignsData);
 };