Fix Prettier using correct version (1.19.1)

test/javascripts/components/combo-box-test.js.es6

@@ -11,7 +11,10 @@ moduleForComponent("combo-box", {
 componentTest("default", {
   template: "{{combo-box content=items}}",
   beforeEach() {
-    this.set("items", [{ id: 1, name: "hello" }, { id: 2, name: "world" }]);
+    this.set("items", [
+      { id: 1, name: "hello" },
+      { id: 2, name: "world" }
+    ]);
   },
 
   async test(assert) {
@@ -43,7 +46,10 @@ componentTest("with valueAttribute", {
 componentTest("with nameProperty", {
   template: '{{combo-box content=items nameProperty="text"}}',
   beforeEach() {
-    this.set("items", [{ id: 0, text: "hello" }, { id: 1, text: "world" }]);
+    this.set("items", [
+      { id: 0, text: "hello" },
+      { id: 1, text: "world" }
+    ]);
   },
 
   async test(assert) {

test/javascripts/components/multi-select-test.js.es6

@@ -14,7 +14,10 @@ componentTest("with objects and values", {
   template: "{{multi-select content=items values=values}}",
 
   beforeEach() {
-    this.set("items", [{ id: 1, name: "hello" }, { id: 2, name: "world" }]);
+    this.set("items", [
+      { id: 1, name: "hello" },
+      { id: 2, name: "world" }
+    ]);
     this.set("values", [1, 2]);
   },
 

test/javascripts/components/single-select-test.js.es6

@@ -33,7 +33,10 @@ componentTest("accepts a value by reference", {
 
   beforeEach() {
     this.set("value", 1);
-    this.set("content", [{ id: 1, name: "robin" }, { id: 2, name: "regis" }]);
+    this.set("content", [
+      { id: 1, name: "robin" },
+      { id: 2, name: "regis" }
+    ]);
   },
 
   async test(assert) {
@@ -148,7 +151,10 @@ componentTest("dynamic headerText", {
   template: "{{single-select value=1 content=content}}",
 
   beforeEach() {
-    this.set("content", [{ id: 1, name: "robin" }, { id: 2, name: "regis" }]);
+    this.set("content", [
+      { id: 1, name: "robin" },
+      { id: 2, name: "regis" }
+    ]);
   },
 
   async test(assert) {
@@ -246,7 +252,10 @@ componentTest("supports keyboard events", {
   template: "{{single-select content=content filterable=true}}",
 
   beforeEach() {
-    this.set("content", [{ id: 1, name: "robin" }, { id: 2, name: "regis" }]);
+    this.set("content", [
+      { id: 1, name: "robin" },
+      { id: 2, name: "regis" }
+    ]);
   },
 
   skip: true,