docs: remove type resource in @template

It seems Psalm does not allow to use `resource` in @template type.
See
- codeigniter4/settings#60 (comment)
- codeigniter4/shield#195 (comment)

Author: kenjis

system/Database/BaseConnection.php

@@ -46,8 +46,8 @@
  * @property bool       $transFailure
  * @property bool       $transStatus
  *
- * @template TConnection of object|resource
- * @template TResult of object|resource
+ * @template TConnection
+ * @template TResult
  *
  * @implements ConnectionInterface<TConnection, TResult>
  */

system/Database/BasePreparedQuery.php

@@ -18,11 +18,11 @@
 use ErrorException;
 
 /**
- * @template TConnection of object|resource
- * @template TStatement of object|resource
- * @template TResult of object|resource
  *
  * @implements PreparedQueryInterface<TConnection, TStatement, TResult>
+ * @template TConnection
+ * @template TStatement
+ * @template TResult
  */
 abstract class BasePreparedQuery implements PreparedQueryInterface
 {

system/Database/BaseResult.php

@@ -15,10 +15,10 @@
 use stdClass;
 
 /**
- * @template TConnection of object|resource
- * @template TResult of object|resource
  *
  * @implements ResultInterface<TConnection, TResult>
+ * @template TConnection
+ * @template TResult
  */
 abstract class BaseResult implements ResultInterface
 {

system/Database/ConnectionInterface.php

@@ -12,8 +12,8 @@
 namespace CodeIgniter\Database;
 
 /**
- * @template TConnection of object|resource
- * @template TResult of object|resource
+ * @template TConnection
+ * @template TResult
  */
 interface ConnectionInterface
 {