update docs and remove references to testcafe

maps/tests/Variables/Cache/variables_cache_1.json

@@ -40,7 +40,7 @@
                     {
                      "fontfamily":"Sans Serif",
                      "pixelsize":11,
-                     "text":"Test:\nThis test is to be run automatically using testcafe",
+                     "text":"Test:\nThis test is to be run automatically using playwright",
                      "wrap":true
                     },
                  "type":"",
@@ -79,4 +79,4 @@
  "type":"map",
  "version":1.5,
  "width":10
-}
+}

maps/tests/Variables/Cache/variables_cache_2.json

@@ -40,7 +40,7 @@
                     {
                      "fontfamily":"Sans Serif",
                      "pixelsize":11,
-                     "text":"Test:\nThis test is to be run automatically using testcafe\n\n(2nd file)",
+                     "text":"Test:\nThis test is to be run automatically using playwright\n\n(2nd file)",
                      "wrap":true
                     },
                  "type":"",
@@ -123,4 +123,4 @@
  "type":"map",
  "version":1.5,
  "width":10
-}
+}