ROB: Soft failure for flate encode image mode 1 with wrong LUT size (… #5504

Job	Run time
Build & verify package	13s
Check code style issues	35s
pytest on windows	7m 4s
pytest on 3.8 (crypto-lib: cryptography)	5m 10s
pytest on 3.9 (crypto-lib: cryptography)	5m 41s
pytest on 3.10 (crypto-lib: cryptography)	5m 20s
pytest on 3.11 (crypto-lib: cryptography)	5m 41s
pytest on 3.12 (crypto-lib: cryptography)	7m 19s
pytest on 3.13 (crypto-lib: cryptography)	7m 17s
pytest on 3.8 (crypto-lib: pycryptodome)	5m 13s
pytest on 3.8 (crypto-lib: none)	5m 8s
Combine & check coverage.	23s
	55m 4s

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