build(deps): bump docker/setup-buildx-action from 3.10.0 to 3.11.1 in the docker-github-actions group #407

Job	Run time
Build NGINX OSS image	32s
Test NGINX OSS image (virtual)	1m 22s
Test NGINX OSS image (virtual-v2)	1m 40s
Build NGINX OSS unprivileged image	24s
Build NGINX OSS image using latest njs commit	1m 16s
Test NGINX OSS unprivileged image	1m 12s
Test NGINX OSS image using latest njs commit	1m 15s
Tag and push all built and tested NGINX images	0s
	7m 41s

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