Merge branch 'update_to_160' into 'master'

[json-glib] Update to version 1.6.0. Fixes JB#51594

See merge request mer-core/json-glib!4

Merge branch 'jb51149' into 'master'

[packaging] Obsoletes libjson-glib because of package rename. Fixes JB#51149

See merge request mer-core/json-glib!3

Merge branch 'update_to_152' into 'master'

[json-glib] Update to version 1.5.2. Fixes JB#51071

See merge request mer-core/json-glib!2

Merge branch 'fix_spec' into 'master'

[spec] Minor spec fixes. Contributes to JB#50383

See merge request mer-core/json-glib!1

[flatpak] Create json-glib package. JB#46927