Update web-platform-tests to revision b'8686b7a6d288d3b2c22b5ddb5a21773619b22b85' (#34202)

Signed-off-by: WPT Sync Bot <ghbot+wpt-sync@servo.org>

tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html.ini

@@ -19,3 +19,33 @@
 
   [Input tags should parse inside select instead of closing the select.]
     expected: FAIL
+
+  [<div>s, <button>s, and <datalist>s should be allowed in <select>]
+    expected: FAIL
+
+  [</select> should close <button>]
+    expected: FAIL
+
+  [</select> should close <datalist>]
+    expected: FAIL
+
+  [<select> in <button> in <select> should remove inner <select>]
+    expected: FAIL
+
+  [<select> in <select><button><div> should remove inner <select>]
+    expected: FAIL
+
+  [Divs and imgs should be allowed as direct children of select and within options without a datalist]
+    expected: FAIL
+
+  [Input tags should parse inside select instead of closing the select]
+    expected: FAIL
+
+  [textarea tags should parse inside select instead of closing the select]
+    expected: FAIL
+
+  [Nested selects should be retained 1]
+    expected: FAIL
+
+  [Nested selects should be retained 2]
+    expected: FAIL

tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedcontentelement-attr.tentative.html.ini

@@ -0,0 +1,3 @@
+[selectedcontentelement-attr.tentative.html]
+  [The selectedcontentelement attribute should set up an association between a select and a selectedcontent.]
+    expected: FAIL

tests/wpt/meta/html/semantics/forms/the-select-element/customizable-select/selectedoptionelement-attr.tentative.html.ini

@@ -1,3 +0,0 @@
-[selectedoptionelement-attr.tentative.html]
-  [The selectedoptionelement attribute should set up an association between a select and a selectedoption.]
-    expected: FAIL