Update version number and xmlsec to 1.3.6 #1519

Job	Run time
Run Coverity tests	0s
Run CodeQL tests	1m 58s
Build on macOS for macos	38s
Build on Fedora 39	1m 31s
Build on macOS for iphoneos	58s
Deploy pages	0s
Build on Fedora 40	1m 21s
Build on Ubuntu 20.04	1m 35s
Build on Fedora 41	1m 6s
Build on Ubuntu 22.04	1m 36s
Build on macOS for iphonesimulator	1m 38s
Build on Ubuntu 24.04	1m 35s
Build on Windows (143, x86)	1m 31s
Build on macOS for androidarm	1m 19s
Build on Ubuntu 24.10	1m 35s
Build on Windows (143, x64)	1m 32s
Build on Windows (142, x86)	1m 31s
Build on macOS for androidarm64	1m 15s
Build on Windows (142, x64)	1m 33s
Build on macOS for androidx86_64	1m 8s
	25m 20s

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