message: Add and increase timeout to RCE tests
  (to check if this solves issues on Linux that are not
  occuring on Windows or macOS during CI workflow)
diff: @@ -30,7 +30,7 @@ describe('b2bOrder', () => {
  createB2bOrder()(this.req, this.res, this.next)
  expect(challenges.rceChallenge.solved).to.equal(true)
  - })
  + }).timeout(4000)
  it('timeout after 2 seconds solves "rceOccupyChallenge"', () => {
  challenges.rceOccupyChallenge = { solved: false, save: this.save }
  @@ -40,7 +40,7 @@ describe('b2bOrder', () => {
  createB2bOrder()(this.req, this.res, this.next)
  expect(challenges.rceOccupyChallenge.solved).to.equal(true)
  - }).timeout(3000)
  + }).timeout(4000)
  it('deserializing JSON as documented in Swagger should not solve "rceChallenge"', () => {
  challenges.rceChallenge = { solved: false, save: this.save }
  