obs-studio: 21.0.2 -> 21.0.3
obs-studio: 21.0.2 -> 21.0.3

Semi-automatic update. These checks were done:

- built on NixOS
- ran `/nix/store/f600v8k119a2l3hscik6xsbsvz3w4jx8-obs-studio-21.0.3/bin/obs -h` got 0 exit code
- ran `/nix/store/f600v8k119a2l3hscik6xsbsvz3w4jx8-obs-studio-21.0.3/bin/obs --help` got 0 exit code
- ran `/nix/store/f600v8k119a2l3hscik6xsbsvz3w4jx8-obs-studio-21.0.3/bin/.obs-wrapped -h` got 0 exit code
- ran `/nix/store/f600v8k119a2l3hscik6xsbsvz3w4jx8-obs-studio-21.0.3/bin/.obs-wrapped --help` got 0 exit code
- found 21.0.3 with grep in /nix/store/f600v8k119a2l3hscik6xsbsvz3w4jx8-obs-studio-21.0.3

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