feat: Add Matrix messenger support via HTTP API #306

Job	Run time
Security Audit	3m 6s
Lint	42s
Unit Tests	1m 21s
Check (x86_64-unknown-linux-gnu, no-default)	2m 45s
Check (x86_64-pc-windows-msvc, no-default)	12m 11s
Check (aarch64-unknown-linux-gnu, web-tools)	4m 7s
Check (aarch64-unknown-linux-gnu, no-default)	3m 58s
Check (aarch64-apple-darwin, default)	2m 53s
Check (x86_64-unknown-linux-gnu, default)	2m 49s
Check (x86_64-pc-windows-msvc, default)	10m 42s
Check (x86_64-unknown-linux-gnu, full)	3m 40s
Check (armv7-unknown-linux-gnueabihf, no-default)	3m 59s
Check (x86_64-apple-darwin, default)	3m 41s
E2E Tests	3m 13s
Integration Tests	1m 7s
Build (${{ matrix.target }})	-1s
	1h 0m 13s

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