fix: mongoose redundant await warning

src/categories/services/categories.service.spec.ts

src/categories/services/categories.service.ts

src/espaceCoop/services/espaceCoop.service.ts

src/newsletter/newsletter.service.spec.ts

src/newsletter/newsletter.service.ts

src/online-mediation/onlineMediation.service.spec.ts

src/online-mediation/onlineMediation.service.ts

src/parameters/parameters.service.spec.ts

src/parameters/parameters.service.ts

src/structures/services/structures.service.ts

src/structures/structure-type/structure-type.service.ts

src/tcl/tclStopPoint.service.ts

src/temp-user/temp-user.service.spec.ts

src/temp-user/temp-user.service.ts

src/users/services/employer.service.spec.ts

src/users/services/employer.service.ts

src/users/services/jobs.service.spec.ts

src/users/services/jobs.service.ts

src/users/services/jobsGroups.service.spec.ts

src/users/services/jobsGroups.service.ts