[soap] Change `action` type to `string`
[soap] Change `action` type to `string`

mcrawshaw/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,isman-usoh/DefinitelyTyped,arusakov/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,markogresak/DefinitelyTyped,amir-arad/DefinitelyTyped,ashwinr/DefinitelyTyped,aciccarello/DefinitelyTyped,benishouga/DefinitelyTyped,one-pieces/DefinitelyTyped,QuatroCode/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,jimthedev/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,ashwinr/DefinitelyTyped,arusakov/DefinitelyTyped,chrootsu/DefinitelyTyped,alexdresko/DefinitelyTyped,benliddicott/DefinitelyTyped,mcrawshaw/DefinitelyTyped,dsebastien/DefinitelyTyped,chrootsu/DefinitelyTyped,zuzusik/DefinitelyTyped,aciccarello/DefinitelyTyped,AgentME/DefinitelyTyped,magny/DefinitelyTyped,jimthedev/DefinitelyTyped,abbasmhd/DefinitelyTyped,benishouga/DefinitelyTyped,minodisk/DefinitelyTyped,AgentME/DefinitelyTyped,dsebastien/DefinitelyTyped,smrq/DefinitelyTyped,magny/DefinitelyTyped,nycdotnet/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,johan-gorter/DefinitelyTyped,abbasmhd/DefinitelyTyped,YousefED/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,zuzusik/DefinitelyTyped,minodisk/DefinitelyTyped,georgemarshall/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,YousefED/DefinitelyTyped,arusakov/DefinitelyTyped,nycdotnet/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped,benishouga/DefinitelyTyped,borisyankov/DefinitelyTyped,rolandzwaga/DefinitelyTyped,mcliment/DefinitelyTyped,rolandzwaga/DefinitelyTyped,isman-usoh/DefinitelyTyped,QuatroCode/DefinitelyTyped,borisyankov/DefinitelyTyped,johan-gorter/DefinitelyTyped,georgemarshall/DefinitelyTyped,jimthedev/DefinitelyTyped,zuzusik/DefinitelyTyped,alexdresko/DefinitelyTyped,aciccarello/DefinitelyTyped,smrq/DefinitelyTyped