pythongh-138736: Fix sqlite3.Connection.blobopen 'row' parameter type and naming (python#138738)

The 'row' parameter represents a ROWID. Clarify this in docs and docstrings.

Author: chirizxc

Doc/library/sqlite3.rst

@@ -620,7 +620,7 @@ Connection objects
       supplied, this must be a :term:`callable` returning
       an instance of :class:`Cursor` or its subclasses.
 
-   .. method:: blobopen(table, column, row, /, *, readonly=False, name="main")
+   .. method:: blobopen(table, column, rowid, /, *, readonly=False, name="main")
 
       Open a :class:`Blob` handle to an existing
       :abbr:`BLOB (Binary Large OBject)`.
@@ -631,8 +631,8 @@ Connection objects
       :param str column:
           The name of the column where the blob is located.
 
-      :param str row:
-          The name of the row where the blob is located.
+      :param int rowid:
+          The row id where the blob is located.
 
       :param bool readonly:
           Set to ``True`` if the blob should be opened without write

Modules/_sqlite/clinic/connection.c.h

@@ -578,8 +578,8 @@ _sqlite3.Connection.blobopen as blobopen
         Table name.
     column as col: str
         Column name.
-    row: sqlite3_int64
-        Row index.
+    rowid as row: sqlite3_int64
+        Row id.
     /
     *
     readonly: bool = False
@@ -593,7 +593,7 @@ Open and return a BLOB object.
 static PyObject *
 blobopen_impl(pysqlite_Connection *self, const char *table, const char *col,
               sqlite3_int64 row, int readonly, const char *name)
-/*[clinic end generated code: output=6a02d43efb885d1c input=23576bd1108d8774]*/
+/*[clinic end generated code: output=6a02d43efb885d1c input=cc3d4b47dac08401]*/
 {
     if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
         return NULL;