deduplicate needle: grant_access / gnome_allow

these were duplicates. In GNOME 46-beta this dialog seems to be
in 'light mode' at least some of the time, so we'll keep the
'light mode' gnome_allow needle we added for Snapshot but
rename it and change its tags. We'll wipe the 'dark mode'
gnome_allow because it should be just the same as the existing
grant_access needle. The two tests that used gnome_allow are
changed to use grant_access.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/gnome/gnome_allow-20220517.json

@@ -1,16 +0,0 @@
-{
-  "area": [
-    {
-      "height": 14,
-      "width": 43,
-      "type": "match",
-      "match": 92,
-      "ypos": 469,
-      "xpos": 613
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "gnome_allow"
-  ]
-}

needles/gnome/grant_access-gnome-20240217.json

@@ -10,6 +10,6 @@
   ],
   "properties": [],
   "tags": [
-    "gnome_allow"
+    "grant_access"
   ]
-}
+}

tests/_vnc_client_connect.pm

@@ -15,7 +15,7 @@ sub run {
         assert_and_click('vinagre_enable_shortcuts');
         sleep 2;
     }
-    assert_and_click('gnome_allow');
+    assert_and_click('grant_access');
     assert_and_click('vinagre_fullscreen');
 }
 

tests/apps_startstop/gnome/camera.pm

@@ -13,8 +13,8 @@ sub run {
     # Start the application
     start_with_launcher('apps_menu_camera');
     # Check that is started or we see the camera access dialog
-    assert_screen ['apps_run_camera', 'gnome_allow'];
+    assert_screen ['apps_run_camera', 'grant_access'];
-    if (match_has_tag 'gnome_allow') {
+    if (match_has_tag 'grant_access') {
         click_lastmatch;
         assert_screen 'apps_run_camera';
     }