build: add support for Connexion 3+ #265

Job	Run time
Run linting and unit tests (3.8, 3.8-slim-bullseye, 4.2, 12345)	3m 31s
Run linting and unit tests (3.8, 3.8-slim-bullseye, 4.4, 12345)	3m 29s
Run linting and unit tests (3.8, 3.8-slim-bullseye, 5.0, 12345)	3m 32s
Run linting and unit tests (3.9, 3.9-slim-bullseye, 4.2, 12345)	3m 34s
Run linting and unit tests (3.9, 3.9-slim-bullseye, 4.4, 12345)	3m 36s
Run linting and unit tests (3.9, 3.9-slim-bullseye, 5.0, 12345)	3m 43s
Run linting and unit tests (3.10, 3.10-slim-bullseye, 4.2, 12345)	3m 46s
Run linting and unit tests (3.10, 3.10-slim-bullseye, 4.4, 12345)	3m 37s
Run linting and unit tests (3.10, 3.10-slim-bullseye, 5.0, 12345)	3m 46s
Run linting and unit tests (3.11, 3.11-slim-bullseye, 4.2, 12345)	3m 52s
Run linting and unit tests (3.11, 3.11-slim-bullseye, 4.4, 12345)	3m 47s
Run linting and unit tests (3.11, 3.11-slim-bullseye, 5.0, 12345)	3m 47s
Docker	0s
	44m 0s

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