Use caching to run tests and report coverage #3587

Job	Run time
docs (./packages/autogen-core)	1m 44s
check-proto-changes-python	1m 25s
docs-example-check (./packages/autogen-core)	2m 48s
format	1m 0s
lint	1m 0s
markdown-code-lint	2m 12s
mypy (./packages/autogen-core)	2m 27s
pyright (./packages/autogen-core)	1m 2s
mypy (./packages/autogen-magentic-one)	1m 17s
pyright (./packages/autogen-magentic-one)	1m 13s
samples-code-check	55s
mypy (./packages/agbench)	1m 5s
pyright (./packages/agbench)	56s
mypy (./packages/autogen-ext)	2m 1s
pyright (./packages/autogen-ext)	1m 8s
mypy (./packages/autogen-agentchat)	1m 41s
test (./packages/autogen-core)	1m 13s
pyright (./packages/autogen-agentchat)	59s
mypy (./packages/magentic-one-cli)	1m 24s
test (./packages/autogen-magentic-one)	2m 2s
pyright (./packages/magentic-one-cli)	1m 4s
test (./packages/autogen-ext)	48m 9s
test (./packages/autogen-agentchat)	1m 14s
codecov	0s
	1h 19m 59s

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