chore: bump github.com/docker/buildx from 0.14.1 to 0.15.0 (#665) #1642

Job	Run time
Build (ubuntu-latest)	57s
Unit Test	1m 6s
Test plugin	1m 0s
Test patch no report buildx/default	6m 54s
Test patch with trivy buildx/default	6m 20s
Test patch no report buildx/named	6m 9s
Test patch with trivy buildx/named	7m 10s
Test patch no report direct/tcp	7m 2s
Test patch with trivy direct/tcp	6m 57s
Test patch no report docker/custom-unix	7m 9s
Test patch with trivy docker/custom-unix	6m 55s
	57m 39s

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