added classmap for autoload dump #258

Job	Run time
build-versions	3s
build-images (fpm, 8.1) / build-image	1m 14s
build-images (fpm, 8.3) / build-image	47s
build-images (fpm, 8.2) / build-image	48s
build-images (fpm-alpine, 8.3) / build-image	40s
build-images (fpm-alpine, 8.2) / build-image	1m 4s
build-images (fpm-alpine, 8.1) / build-image	40s
build-images (apache, 8.3) / build-image	1m 12s
build-images (apache, 8.2) / build-image	1m 18s
build-images (apache, 8.1) / build-image	1m 15s
latest (apache, 8.3, 8) / build-image	55s
latest (fpm-alpine, 8.3, 8) / build-image	1m 3s
latest (fpm, 8.3, 8) / build-image	1m 32s
	12m 31s

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