Fix typos in TrendingRepositoriesListViewModel.swift

[Benjp-h]

Hi, I fixed several typos in TrendingRepositoriesListViewModel.swift (#Line: 58, 65, 92) 🫠 There was a typo in the function name I defined, so I fixed it.

• origin

  private func loadData() {
      ...
      self?.mainQueue.async {
          // #Line 58
          self?.udpate(page.items)
      }
      ...
      switch result {
      case .success(let page):
          // #Line 65
          self?.udpate(page.items)
  }
  
  // #Line 92
  private func udpate(_ repositories: [Repository]) { ...
  

• changed

  private func loadData() {
      ...
      self?.mainQueue.async {
          // #Line 58
          self?.update(page.items)
      }
      ...
      switch result {
      case .success(let page):
          // #Line 65
          self?.update(page.items)
  }
  
  // #Line 92
  private func update(_ repositories: [Repository]) { ...