OSF: Used model.NewPointer everywhere (#27838)

```release-note
NONE
```

server/config/utils_test.go

@@ -18,19 +18,19 @@ func TestDesanitize(t *testing.T) {
 	actual.SetDefaults()
 
 	// These setting should be ignored
-	actual.LdapSettings.Enable = model.NewBool(false)
-	actual.FileSettings.DriverName = model.NewString("s3")
+	actual.LdapSettings.Enable = model.NewPointer(false)
+	actual.FileSettings.DriverName = model.NewPointer("s3")
 
 	// These settings should be desanitized into target.
-	actual.LdapSettings.BindPassword = model.NewString("bind_password")
-	actual.FileSettings.PublicLinkSalt = model.NewString("public_link_salt")
-	actual.FileSettings.AmazonS3SecretAccessKey = model.NewString("amazon_s3_secret_access_key")
-	actual.EmailSettings.SMTPPassword = model.NewString("smtp_password")
-	actual.GitLabSettings.Secret = model.NewString("secret")
-	actual.OpenIdSettings.Secret = model.NewString("secret")
-	actual.SqlSettings.DataSource = model.NewString("data_source")
-	actual.SqlSettings.AtRestEncryptKey = model.NewString("at_rest_encrypt_key")
-	actual.ElasticsearchSettings.Password = model.NewString("password")
+	actual.LdapSettings.BindPassword = model.NewPointer("bind_password")
+	actual.FileSettings.PublicLinkSalt = model.NewPointer("public_link_salt")
+	actual.FileSettings.AmazonS3SecretAccessKey = model.NewPointer("amazon_s3_secret_access_key")
+	actual.EmailSettings.SMTPPassword = model.NewPointer("smtp_password")
+	actual.GitLabSettings.Secret = model.NewPointer("secret")
+	actual.OpenIdSettings.Secret = model.NewPointer("secret")
+	actual.SqlSettings.DataSource = model.NewPointer("data_source")
+	actual.SqlSettings.AtRestEncryptKey = model.NewPointer("at_rest_encrypt_key")
+	actual.ElasticsearchSettings.Password = model.NewPointer("password")
 	actual.SqlSettings.DataSourceReplicas = append(actual.SqlSettings.DataSourceReplicas, "replica0")
 	actual.SqlSettings.DataSourceReplicas = append(actual.SqlSettings.DataSourceReplicas, "replica1")
 	actual.SqlSettings.DataSourceSearchReplicas = append(actual.SqlSettings.DataSourceSearchReplicas, "search_replica0")
@@ -40,19 +40,19 @@ func TestDesanitize(t *testing.T) {
 	target.SetDefaults()
 
 	// These setting should be ignored
-	target.LdapSettings.Enable = model.NewBool(true)
-	target.FileSettings.DriverName = model.NewString("file")
+	target.LdapSettings.Enable = model.NewPointer(true)
+	target.FileSettings.DriverName = model.NewPointer("file")
 
 	// These settings should be updated from actual
-	target.LdapSettings.BindPassword = model.NewString(model.FakeSetting)
-	target.FileSettings.PublicLinkSalt = model.NewString(model.FakeSetting)
-	target.FileSettings.AmazonS3SecretAccessKey = model.NewString(model.FakeSetting)
-	target.EmailSettings.SMTPPassword = model.NewString(model.FakeSetting)
-	target.GitLabSettings.Secret = model.NewString(model.FakeSetting)
-	target.OpenIdSettings.Secret = model.NewString(model.FakeSetting)
-	target.SqlSettings.DataSource = model.NewString(model.FakeSetting)
-	target.SqlSettings.AtRestEncryptKey = model.NewString(model.FakeSetting)
-	target.ElasticsearchSettings.Password = model.NewString(model.FakeSetting)
+	target.LdapSettings.BindPassword = model.NewPointer(model.FakeSetting)
+	target.FileSettings.PublicLinkSalt = model.NewPointer(model.FakeSetting)
+	target.FileSettings.AmazonS3SecretAccessKey = model.NewPointer(model.FakeSetting)
+	target.EmailSettings.SMTPPassword = model.NewPointer(model.FakeSetting)
+	target.GitLabSettings.Secret = model.NewPointer(model.FakeSetting)
+	target.OpenIdSettings.Secret = model.NewPointer(model.FakeSetting)
+	target.SqlSettings.DataSource = model.NewPointer(model.FakeSetting)
+	target.SqlSettings.AtRestEncryptKey = model.NewPointer(model.FakeSetting)
+	target.ElasticsearchSettings.Password = model.NewPointer(model.FakeSetting)
 	target.SqlSettings.DataSourceReplicas = []string{model.FakeSetting, model.FakeSetting}
 	target.SqlSettings.DataSourceSearchReplicas = []string{model.FakeSetting, model.FakeSetting}