ci: update github action · cxfksword/jellyfin-plugin-metashark@1528aa4

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

Dereference of a possibly null reference.

Possible null reference return.

Unreachable code detected

Non-nullable property 'ImdbID' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Id' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Name' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Img' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Role' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Intro' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Gender' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

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