Add API route to list org secrets (#26485)

- Add a new function `CountOrgSecrets` in the file
`models/secret/secret.go`
- Add a new file `modules/structs/secret.go`
- Add a new function `ListActionsSecrets` in the file
`routers/api/v1/api.go`
- Add a new file `routers/api/v1/org/action.go`
- Add a new function `listActionsSecrets` in the file
`routers/api/v1/org/action.go`

go-sdk: https://gitea.com/gitea/go-sdk/pulls/629

---------

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <matti@mdranta.net>
Co-authored-by: Giteabot <teabot@gitea.io>

models/secret/secret.go

@@ -88,3 +88,8 @@ func FindSecrets(ctx context.Context, opts FindSecretsOptions) ([]*Secret, error
 		Where(opts.toConds()).
 		Find(&secrets)
 }
+
+// CountSecrets counts the secrets
+func CountSecrets(ctx context.Context, opts *FindSecretsOptions) (int64, error) {
+	return db.GetEngine(ctx).Where(opts.toConds()).Count(new(Secret))
+}