Fix some issues reported by lintian

Fix some issues reported by lintian

• Use secure URI in Homepage field. (homepage-field-uses-insecure-uri)
• Set upstream metadata fields: Bug-Database, Bug-Submit, Repository-Browse. (upstream-metadata-file-is-missing, upstream-metadata-missing-bug-tracking)

This merge proposal was created by the Janitor bot, and it will automatically rebase or close this proposal as appropriate when the target branch changes. Any comments you leave here will be read by the Janitor's maintainers.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/glibmm2.68/3f3b66b9-d097-4616-aeb6-27b7e0681066.

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/2d/a525118e20ba75d7bb5044b393e58ca6e3e71f.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/3e/98b077df7748581a5202d118fc20edb0f5b85b.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/8e/d9edf7b5aacc8fe082e8545a2f15728b1e1d9e.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/20/ef84d3431af9e326ae45043f31b57847377cff.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/38/d40bbcedb931667c00f0428c1610aa59423f62.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/7a/f8bf23bd69fecffd199014e4737abf6647a4b1.debug

Control files of package libglibmm-2.68-1: lines which differ (wdiff format)

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

Control files of package libglibmm-2.68-1-dbgsym: lines which differ (wdiff format)

• Build-Ids: 20ef84d3431af9e326ae45043f31b57847377cff 38d40bbcedb931667c00f0428c1610aa59423f62 7af8bf23bd69fecffd199014e4737abf6647a4b1 2da525118e20ba75d7bb5044b393e58ca6e3e71f 3e98b077df7748581a5202d118fc20edb0f5b85b 8ed9edf7b5aacc8fe082e8545a2f15728b1e1d9e

Control files of package libglibmm-2.68-dev: lines which differ (wdiff format)

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

Control files of package libglibmm-2.68-doc: lines which differ (wdiff format)

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

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