[ci] update wxWidgets to 3.2.6 #5412

Job	Run time
libs-build	5m 35s
client-armv6-build	2m 43s
apps-build	9m 52s
client-arm-build	4m 9s
libs-cmake-build	7m 6s
client-arm64-build	3m 3s
client-x86-build	3m 43s
client-x86_64-build	3m 32s
manager-build (assembleRelease)	3m 25s
manager-build (assembleXiaomi_release)	3m 33s
manager-build (assembleArmv6_release)	3m 23s
manager-build (jacocoTestReportDebug)	3m 15s
	53m 19s

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