add lock file

pubspec.lock

@@ -222,14 +222,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.2"
-  country_code_picker:
-    dependency: "direct main"
-    description:
-      name: country_code_picker
-      sha256: fdc2ae84d0342d4a7c6ebc83fbe002a70c8231ff5734505676292fc2c2cc4433
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.1.0"
   country_icons:
     dependency: "direct main"
     description:
@@ -238,6 +230,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.2"
+  country_picker:
+    dependency: "direct main"
+    description:
+      name: country_picker
+      sha256: "9b14c04f9a35e99f6de6bcbc453a556bb98345aecb481c7a0e843c94c2bee1f8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.27"
   coverage:
     dependency: transitive
     description:
@@ -1446,6 +1446,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
   url_launcher:
     dependency: "direct main"
     description: