Update CSS progress() status (Safari 26 support, Firefox impl_url) (mdn#28688)

Author: SuperchupuDev

css/types/progress.json

@@ -13,22 +13,23 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1975530"
             },
             "firefox_android": "mirror",
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "26"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": "mirror",
             "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }