fix(eslint): amp tags not support pascal case

[skip release]

examples/with-amp/pages/dog.vue

@@ -2,7 +2,8 @@
   <div>
     <h1>The Dog</h1>
     <Byline author="Meow Meow Fuzzyface" />
-    <AmpImg src="/dog.jpg" width="470" height="350" layout="responsive" alt="Woof" />
+    <!-- eslint-disable-next-line vue/component-name-in-template-casing -->
+    <amp-img src="/dog.jpg" width="470" height="350" layout="responsive" alt="Woof" />
     <p class="caption">
       Woooooooooooof
     </p>

examples/with-amp/pages/index.vue

@@ -2,7 +2,8 @@
   <div>
     <h1>The Cat</h1>
     <Byline author="Dan Zajdband" />
-    <AmpImg src="/cat.jpg" width="470" height="350" layout="responsive" alt="Meow" />
+    <!-- eslint-disable-next-line vue/component-name-in-template-casing -->
+    <amp-img src="/cat.jpg" width="470" height="350" layout="responsive" alt="Meow" />
     <p class="caption">
       Meowwwwwwww
     </p>

test/fixtures/basic/pages/store.vue

@@ -8,7 +8,9 @@
     <br>
     <h4>foo/bab/getBabVal: {{ getBabVal }}</h4>
     <br>
-    <button @click="$store.commit('increment')">+1</button>
+    <button @click="$store.commit('increment')">
+      +1
+    </button>
   </div>
 </template>