gh-133390: Amend gh-135659 (sqlite3 docs update)

- The SQLITE_KEYWORDS constant describes SQLite, not sqlite3, keywords
- SQLITE_KEYWORDS were added in 3.14, not in upcoming 3.15

Author: erlend-aasland

Doc/library/sqlite3.rst

@@ -509,12 +509,12 @@ Module constants
 
 .. data:: SQLITE_KEYWORDS
 
-   A :class:`tuple` containing all sqlite3 keywords.
+   A :class:`tuple` containing all SQLite keywords.
 
    This constant is only available if Python was compiled with SQLite
    3.24.0 or greater.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 
 .. data:: threadsafety