Bug 1819243 [wpt PR 38732] - Update wpt metadata, a=testonly

wpt-pr: 38732
wpt-type: metadata

testing/web-platform/meta/mathml/relations/css-styling/mathvariant-case-sensitivity.html.ini

@@ -1,3 +0,0 @@
-[mathvariant-case-sensitivity.html]
-  expected:
-    if (processor == "x86") and not debug: ["PASS", "TIMEOUT"]

testing/web-platform/meta/webdriver/tests/find_element_from_shadow_root/find.py.ini

@@ -1,4 +1,6 @@
 [find.py]
+  expected:
+    if (os == "win") and not debug and (processor == "x86_64"): [OK, TIMEOUT]
   [test_find_element[open-tag name-a\]]
     bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1822321
     expected: FAIL

testing/web-platform/meta/webdriver/tests/get_element_tag_name/get.py.ini

@@ -0,0 +1,3 @@
+[get.py]
+  expected:
+    if (os == "android") and debug and not swgl: [OK, TIMEOUT]

testing/web-platform/meta/webdriver/tests/switch_to_parent_frame/switch.py.ini

@@ -3,5 +3,6 @@
     expected:
       if (os == "linux") and debug and fission and not swgl: [PASS, FAIL]
       if (os == "linux") and debug and not fission and swgl: [PASS, FAIL]
-      if (os == "linux") and not debug and not fission: [PASS, FAIL]
       if (os == "linux") and not debug and fission: [PASS, FAIL]
+      if (os == "linux") and not debug and not swgl: [PASS, FAIL]
+      if (os == "linux") and not debug and swgl: [PASS, FAIL]