fix: docker-images.yml did not actually run tests #8506

Job	Run time
Create Release Package	10m 5s
Build	11m 40s
Integration test (jsii-pacmak)	46m 15s
Run benchmark suite	52m 1s
Test (baseline)	23m 20s
Test (Windows)	40m 46s
Test (macOS)	39m 55s
Test (Node 16)	27m 14s
Test (Node 18)	19m 57s
Test (Node 20)	21m 21s
Test (.NET 7.0)	26m 38s
Test (Go 1.19)	27m 58s
Test (Java 11)	20m 54s
Test (Python 3.8)	20m 24s
Test (Python 3.9)	26m 14s
Test (Python 3.10)	19m 45s
Test (Python 3.11)	19m 40s
Unit Tests	1s
	7h 34m 8s

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