fix: [REST client] resolved issues with the URL builder for the REST queries causing double "/"s after the baseurl
fix: [REST client] resolved issues with the URL builder for the REST queries causing double "/"s after the baseurl

FloatingGhost/MISP,SteveClement/MISP,FIRSTdotorg/MISP,MISP/MISP,Rafiot/MISP,Rafiot/MISP,Rafiot/MISP,Rafiot/MISP,FloatingGhost/MISP,devnull-/MISP,SteveClement/MISP,devnull-/MISP,FloatingGhost/MISP,MISP/MISP,devnull-/MISP,FIRSTdotorg/MISP,MISP/MISP,MISP/MISP,MISP/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,devnull-/MISP,FIRSTdotorg/MISP