Update version number and xmlsec to 1.3.6 #1518

Job	Run time
Run Coverity tests	0s
Run CodeQL tests	3m 27s
Build on Fedora 39	1m 34s
Build on macOS for macos	1m 49s
Build on macOS for iphoneos	1m 20s
Build on Fedora 40	1m 26s
Deploy pages	0s
Build on Fedora 41	1m 2s
Build on macOS for iphonesimulator	1m 13s
Build on Ubuntu 20.04	2m 51s
Build on macOS for androidarm	1m 8s
Build on Ubuntu 22.04	3m 27s
Build on macOS for androidarm64	1m 5s
Build on Ubuntu 24.04	3m 14s
Build on Windows (143, x86)	6m 18s
Build on macOS for androidx86_64	1m 8s
Build on Ubuntu 24.10	3m 19s
Build on Windows (143, x64)	6m 18s
Build on Windows (142, x86)	6m 19s
Build on Windows (142, x64)	6m 16s
	53m 14s

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