Updated static fixture to use new HTML output

spec/frontend/fixtures/static/deprecated_jquery_dropdown.html

 <div>
-<div class="dropdown inline">
-<button class="dropdown-menu-toggle" data-toggle="dropdown" id="js-project-dropdown" type="button">
-<div class="dropdown-toggle-text">
-Projects
-</div>
-<i class="fa fa-chevron-down dropdown-toggle-caret js-projects-dropdown-toggle"></i>
-</button>
-<div class="dropdown-menu dropdown-select dropdown-menu-selectable">
-<div class="dropdown-title">
-<span>Go to project</span>
-<button aria="{:label=&gt;&quot;Close&quot;}" class="dropdown-title-button dropdown-menu-close">
-<i class="fa fa-times dropdown-menu-close-icon"></i>
-</button>
-</div>
-<div class="dropdown-input">
-<input class="dropdown-input-field" placeholder="Filter results" type="search">
-<i class="fa fa-search dropdown-input-search"></i>
-</div>
-<div class="dropdown-content"></div>
-<div class="dropdown-loading">
-<i class="fa fa-spinner fa-spin"></i>
-</div>
-</div>
-</div>
+  <div class="dropdown inline">
+    <button
+      class="dropdown-menu-toggle"
+      data-toggle="dropdown"
+      id="js-project-dropdown"
+      type="button"
+    >
+      <div class="dropdown-toggle-text">
+        Projects
+      </div>
+      <i class="fa fa-chevron-down dropdown-toggle-caret js-projects-dropdown-toggle"></i>
+    </button>
+    <div class="dropdown-menu dropdown-select dropdown-menu-selectable">
+      <div class="dropdown-title gl-display-flex gl-align-items-center">
+        <span class="gl-ml-auto">Go to project</span>
+        <button
+          aria-label="Close"
+          type="button"
+          class="btn dropdown-title-button dropdown-menu-close gl-ml-auto btn-default btn-sm gl-button btn-default-tertiary btn-icon"
+        >
+          <svg data-testid="close-icon" class="gl-icon s16 dropdown-menu-close-icon">
+            <use
+              href="/assets/icons-795a2ef2fd636a0538bbef3b8d2787dd90927b42d7617fdda8620930016b333d.svg#close"
+            ></use>
+          </svg>
+        </button>
+      </div>
+      <div class="dropdown-input">
+        <input class="dropdown-input-field" placeholder="Filter results" type="search" />
+        <i class="fa fa-search dropdown-input-search"></i>
+      </div>
+      <div class="dropdown-content"></div>
+      <div class="dropdown-loading">
+        <i class="fa fa-spinner fa-spin"></i>
+      </div>
+    </div>
+  </div>
 </div>