REF: replaced variable name in TextMentionTermination (#5698) #5135

Job	Run time
format	1m 4s
lint	1m 12s
mypy (./packages/autogen-core)	3m 31s
docs (./packages/autogen-core)	2m 1s
mypy (./packages/agbench)	1m 15s
pyright (./packages/autogen-core)	1m 25s
mypy (./packages/autogen-ext)	3m 10s
pyright (./packages/agbench)	1m 5s
mypy (./packages/autogen-agentchat)	1m 31s
mypy (./packages/magentic-one-cli)	1m 30s
test (./packages/autogen-core)	1m 19s
pyright (./packages/autogen-ext)	1m 7s
test (./packages/autogen-ext)	4m 15s
pyright (./packages/autogen-agentchat)	58s
test (./packages/autogen-agentchat)	1m 23s
pyright (./packages/magentic-one-cli)	55s
test-grpc	1m 27s
check-proto-changes-python	1m 26s
docs-example-check (./packages/autogen-core)	3m 55s
samples-code-check	58s
markdown-code-lint	2m 49s
codecov (./packages/autogen-core)	13s
codecov (./packages/autogen-ext)	8s
codecov (./packages/autogen-agentchat)	11s
codecov (autogen-ext-grpc)	10s
	38m 58s

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