Fix some issues reported by lintian

Fix some issues reported by lintian

• Bump debhelper from old 11 to 13. (package-uses-old-debhelper-compat-version)

• Set upstream metadata fields: Bug-Database, Bug-Submit. (upstream-metadata-file-is-missing, upstream-metadata-missing-bug-tracking)

This merge proposal was created automatically by the Janitor bot. For more information, including instructions on how to disable these merge proposals, see https://janitor.debian.net/lintian-fixes.

You can follow up to this merge proposal as you normally would.

The bot will automatically update the merge proposal to resolve merge conflicts or close the merge proposal when all changes are applied through other means (e.g. cherry-picks). Updates may take several hours to propagate.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/pd-pool/a214258e-d240-4ab7-860a-f230d6e9c6d3.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/c8/f7c79d8991b30a591ef90efa4e82f761165036.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/5e/4c4f75586b45ac2e9d11dc8e2b7ee5059ae861.debug

No differences were encountered between the control files of package **pd-pool**

Control files of package pd-pool-dbgsym: lines which differ (wdiff format)

• Build-Ids: 5e4c4f75586b45ac2e9d11dc8e2b7ee5059ae861 c8f7c79d8991b30a591ef90efa4e82f761165036

You can also view the diffoscope diff (unfiltered).