Deps: Bump docker/build-push-action from 6.11.0 to 6.12.0 in the github-actions group #1957

Job	Run time
Build the documentation	23s
Lint all scripts (3.9)	24s
Lint all scripts (3.10)	32s
Lint all scripts (3.11)	26s
Lint all scripts (3.12)	24s
Check versioning / Check versioning for consistency	17s
Linting (3.10) / Linting	27s
Linting (3.11) / Linting	17s
Linting (3.12) / Linting	16s
Linting (3.9) / Linting	23s
Unit tests (3.10) / Run all tests	24s
Unit tests (3.11) / Run all tests	22s
Unit tests (3.12) / Run all tests	24s
Unit tests (3.9) / Run all tests	23s
Upload coverage to codecov.io	31s
	5m 53s

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