tests

Bump copyright year and remove needless parentheses in file `markdown-unicode-data.lua` #3222

Job	Run time
Style check (Lua)	33s
Style check (expl3)	16s
Style check (Python)	22s
Style check (Line length)	26s
Style check (Markdown)	24s
Style check (Bash)	6s
Style check (Tabs and spaces)	3s
Type check (Python)	41s
Build Docker image (latest)	4s
Test Docker image	1s
Publish artefacts and create a prerelease	1s
Automatically merge pull request	1s
Publish Docker image	1s
	2m 59s

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