ci: bump docker/build-push-action from 6.7.0 to 6.8.0 (#640) #1265

Job	Run time
Calculate test matrix	4s
Run pytest (bert_classifier, ubuntu-latest)	3m 39s
Run pytest (easyocr, ubuntu-latest)	3m 40s
Run pytest (flair, ubuntu-latest)	4m 5s
Run pytest (gliner, ubuntu-latest)	4m 1s
Run pytest (grounding_dino, ubuntu-latest-4c-16gb)	10m 46s
Run pytest (grounding_sam, ubuntu-latest-4c-16gb)	11m 26s
Run pytest (huggingface_llm, ubuntu-latest)	3m 24s
Run pytest (huggingface_ner, ubuntu-latest)	3m 43s
Run pytest (interactive_substring_matching, ubuntu-latest)	1m 34s
Run pytest (langchain_search_agent, ubuntu-latest)	2m 3s
Run pytest (llm_interactive, ubuntu-latest)	2m 1s
Run pytest (mmdetection-3, ubuntu-latest-4c-16gb)	13m 5s
Run pytest (nemo_asr, ubuntu-latest)	7m 14s
Run pytest (segment_anything_model, ubuntu-latest)	5m 42s
Run pytest (sklearn_text_classifier, ubuntu-latest)	2m 9s
Run pytest (spacy, ubuntu-latest)	2m 24s
Run pytest (tesseract, ubuntu-latest)	2m 3s
Run pytest (watsonx_llm, ubuntu-latest)	2m 11s
Run pytest (yolo, ubuntu-latest)	8m 25s
Auto Merge dependabot PR	0s
	1h 33m 39s

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