<div id="app">
  <b-table striped hover :items="items">
    <template v-slot:cell(isInProgress)="data">
          <b-button
            size="sm"
      @click="putNewValue(data.item)"
            class="mr-2"
          >
            {{data.item.isInProgress ? 'Обновление...' : 'Исправить'}}
          </b-button>
        </template>
  </b-table>
</div>  

var app = new Vue({
  el: "#app",
  data() {
    return {
      items: [
        {
          age: 40,
          first_name: "Dickerson",
          last_name: "Macdonald",
          isInProgress: false
        },
        { age: 21, first_name: "Larsen", last_name: "Shaw",
          isInProgress: false },
        { age: 89, first_name: "Geneva", last_name: "Wilson",
          isInProgress: false },
        { age: 38, first_name: "Jami", last_name: "Carney",
          isInProgress: false }
      ],
      modalShow: false
    };
  },
  methods: {
    putNewValue(target) {
      target.isInProgress = true;
      setTimeout(() => {
        target.isInProgress = false;
      }, 2000);
    }
  }
});

Vue.use(BootstrapVue);