Fix some issues reported by lintian

Fix some issues reported by lintian

• Use correct machine-readable copyright file URI. (out-of-date-copyright-format-uri)

• Use secure URI in Homepage field. (homepage-field-uses-insecure-uri)

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

• Set debhelper-compat version in Build-Depends. (uses-debhelper-compat-file)

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

• Update standards version to 4.5.1, no changes needed. (out-of-date-standards-version)

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.

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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/leocad/0b49f64c-bd23-42da-ba86-6c06a1e12f26.

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/8f/02d50f9e51654094405751efc53f8e6cb23b40.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/5e/4a7ff035440822e770ba168c08e996720a4039.debug

Control files of package leocad: lines which differ (wdiff format)

• Homepage: [-http​://www.leocad.org/-] {+https​://www.leocad.org/+}

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

• Build-Ids: 5e4a7ff035440822e770ba168c08e996720a4039 8f02d50f9e51654094405751efc53f8e6cb23b40

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