bindings: Allow Guard to take multiple conditions, check for SecureContext in ConstructorEnabled (#33508)

* Update condition handling for exposing values

- Let Guard take a list of conditions
- Check for secure context condition when exposing constructor

Signed-off-by: Daniel Adams <msub2official@gmail.com>

* Update WPT expectations

Signed-off-by: Daniel Adams <msub2official@gmail.com>

* Python tidy

Signed-off-by: Daniel Adams <msub2official@gmail.com>

* Make interfaces test run in secure context

Signed-off-by: Daniel Adams <msub2official@gmail.com>

---------

Signed-off-by: Daniel Adams <msub2official@gmail.com>

tests/wpt/meta-legacy-layout/webxr/webxr_availability.http.sub.html.ini

@@ -1,7 +0,0 @@
-[webxr_availability.http.sub.html]
-  [Test webxr not available in secure context in insecure context]
-    expected: FAIL
-
-  [Test webxr not available in insecure context]
-    expected: FAIL
-

tests/wpt/meta/webxr/webxr_availability.http.sub.html.ini

@@ -1,6 +0,0 @@
-[webxr_availability.http.sub.html]
-  [Test webxr not available in insecure context]
-    expected: FAIL
-
-  [Test webxr not available in secure context in insecure context]
-    expected: FAIL

tests/wpt/mozilla/meta/MANIFEST.json

@@ -13494,7 +13494,7 @@
       {}
      ]
     ],
-    "interfaces.html": [
+    "interfaces.https.html": [
      "94f1102da478919d2948ebb96f81450f5d545635",
      [
       null,