Drop support for pydantic v1 #2574

Job	Run time
build-linux-test-other	1m 13s
build-windows	1m 38s
build-linux-lint	17s
build-linux-test-component (buildx)	2m 41s
Render docs	54s
build-linux-test-component (test_compose.py)	7m 2s
build-linux-test-component (test_config.py)	59s
build-linux-test-component (test_container.py)	7m 57s
build-linux-test-component (test_context.py)	46s
build-linux-test-component (test_image.py)	1m 23s
build-linux-test-component (test_manifest.py)	53s
build-linux-test-component (test_network.py)	1m 21s
build-linux-test-component (test_node.py)	1m 17s
build-linux-test-component (test_plugin.py)	56s
build-linux-test-component (test_pod.py)	1m 6s
build-linux-test-component (test_service.py)	3m 4s
build-linux-test-component (test_stack.py)	1m 14s
build-linux-test-component (test_swarm.py)	1m 12s
build-linux-test-component (test_system.py)	1m 29s
build-linux-test-component (test_task.py)	1m 0s
build-linux-test-component (test_volume.py)	1m 11s
	39m 33s

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