doc: Adapt GLib documentation path to GLib 2.80.1 #300

Job	Run time
Mageia 8	2m 3s
Mageia 8	2m 3s
Arch Linux	2m 3s
Arch Linux	2m 3s
OpenMandriva Cooker	3m 27s
OpenMandriva Cooker	3m 27s
Get Fedora Releases	7s
Get Fedora Releases	3s
openSUSE Tumbleweed	2m 4s
openSUSE Tumbleweed	2m 4s
Unit Tests (Devel Fedora)	0s
Installed RPM Tests (Stable Fedora)	0s
Unit Tests (Stable Fedora)	0s
Installed RPM Tests (Devel Fedora)	0s
Unit Tests (Devel Fedora) (41)	2m 45s
Installed RPM Tests (Stable Fedora) (x86_64, 40)	22s
Unit Tests (Stable Fedora) (40)	9s
Installed RPM Tests (Stable Fedora) (x86_64, 38)	27s
Installed RPM Tests (Devel Fedora) (x86_64, 41)	2m 49s
Unit Tests (Stable Fedora) (38)	9s
Installed RPM Tests (Stable Fedora) (x86_64, 39)	25s
Unit Tests (Stable Fedora) (39)	9s
	26m 39s

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