tdf#158237 chart2: use c++20 contains() instead of find() and end()

Change-Id: Id1a128b0c0f8e1e7ec13545240fe6c07637e9ffb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/185262
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

dbaccess/source/core/dataaccess/connection.cxx

@@ -737,7 +737,7 @@ void OConnection::impl_checkTableQueryNames_nothrow()
 
         for ( auto const & queryName : aQueryNames )
         {
-            if ( aSortedTableNames.find( queryName ) != aSortedTableNames.end() )
+            if ( aSortedTableNames.contains(queryName) )
             {
                 OUString sConflictWarning( DBA_RES( RID_STR_CONFLICTING_NAMES ) );
                 m_aWarnings.appendWarning( sConflictWarning, "01SB0", *this );