fIx final few tests for age_range to year_of_birth change

t/api/login.t

@@ -24,7 +24,7 @@ my $test_json = {
   'email' => $email, 
   'postcode' => 'LA1 1AA', 
   'password' => $password, 
-  'age_range' => 1
+  year_of_birth => 2006
 };
 $t->post_ok('/api/register' => json => $test_json)
   ->status_is(200)

t/api/stats.t

@@ -17,7 +17,7 @@ my $user = {
   email        => 'test@example.com',
   postcode     => 'LA1 1AA',
   password     => 'abc123',
-  age_range    => 1,
+  year_of_birth => 2006,
 };
 
 my $org = {

t/api/stats_leaderboards.t

@@ -17,7 +17,7 @@ my $user1 = {
   email        => 'test1@example.com',
   postcode     => 'LA1 1AA',
   password     => 'abc123',
-  age_range    => 1,
+  year_of_birth => 2006,
 };
 
 my $user2 = {
@@ -27,7 +27,7 @@ my $user2 = {
   email        => 'test2@example.com',
   postcode     => 'LA1 1AA',
   password     => 'abc123',
-  age_range    => 1,
+  year_of_birth => 2006,
 };
 
 my $user3 = {
@@ -37,7 +37,7 @@ my $user3 = {
   email        => 'test3@example.com',
   postcode     => 'LA1 1AA',
   password     => 'abc123',
-  age_range    => 1,
+  year_of_birth => 2006,
 };
 
 my $user4 = {
@@ -47,7 +47,7 @@ my $user4 = {
   email        => 'test4@example.com',
   postcode     => 'LA1 1AA',
   password     => 'abc123',
-  age_range    => 1,
+  year_of_birth => 2006,
 };
 
 my $org = {

t/api/user.t

@@ -24,7 +24,7 @@ $framework->register_customer({
   'email' => $email,
   'postcode' => 'LA1 1AA',
   'password' => $password,
-  'age_range' => 1
+  year_of_birth => 2006
 });
 
 my $session_key = $framework->login({