Update all versions to 0.4.0 (#4941) #3288

Job	Run time
format	1m 28s
lint	1m 35s
mypy (./packages/autogen-core)	2m 50s
mypy (./packages/autogen-magentic-one)	1m 52s
pyright (./packages/autogen-core)	1m 34s
test (./packages/autogen-core)	1m 30s
pyright (./packages/autogen-magentic-one)	1m 43s
mypy (./packages/agbench)	1m 32s
test (./packages/autogen-magentic-one)	1m 57s
pyright (./packages/agbench)	1m 30s
mypy (./packages/autogen-ext)	2m 24s
codecov (./packages/autogen-core)	1m 47s
pyright (./packages/autogen-ext)	1m 37s
test (./packages/autogen-ext)	5m 35s
codecov (./packages/autogen-magentic-one)	4m 28s
pyright (./packages/autogen-agentchat)	1m 42s
mypy (./packages/autogen-agentchat)	1m 43s
test (./packages/autogen-agentchat)	1m 37s
codecov (./packages/autogen-ext)	3m 14s
pyright (./packages/magentic-one-cli)	1m 45s
mypy (./packages/magentic-one-cli)	1m 35s
codecov (./packages/autogen-agentchat)	1m 45s
docs (./packages/autogen-core)	2m 14s
docs-example-check (./packages/autogen-core)	3m 5s
samples-code-check	1m 45s
markdown-code-lint	2m 43s
check-proto-changes-python	1m 31s
	58m 1s

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