Docs: Backwards compatibility with Doxygen 1.9 #39

Job	Run time
Build QMapLibre for Android (Qt6.5.3, x86)	4m 23s
Build QMapLibre for Android (Qt6.5.3, x86_64)	5m 4s
Build QMapLibre for Android (Qt6.5.3, armeabi-v7a)	4m 26s
Build QMapLibre for Android (Qt6.5.3, arm64-v8a)	5m 11s
Build QMapLibre for Android (Qt6.6.1, x86)	5m 13s
Build QMapLibre for Android (Qt6.6.1, x86_64)	4m 31s
Build QMapLibre for Android (Qt6.6.1, armeabi-v7a)	5m 22s
Build QMapLibre for Android (Qt6.6.1, arm64-v8a)	4m 39s
Combine QMapLibre (6.5.3)	1m 15s
Combine QMapLibre (6.6.1)	1m 6s
Release QMapLibre	0s
	41m 10s

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