bom generation script has diff depending on platforms

[suztomo]

New script generation (I ran on Linux) has irrelevant changes #8519. Probably because the BOM was generated last time on Mac.

The sort command's behavior differs between Mac and Linux.

Linux:

$ cat /tmp/o |sort
java-bigqueryconnection
java-bigquery-data-exchange

Mac:

$ cat /tmp/o |sort
java-bigquery-data-exchange
java-bigqueryconnection

We should give --dictionary-order option to sort command.

 $ cat /tmp/o |sort --dictionary-order
java-bigqueryconnection
java-bigquery-data-exchange