Fix ToS: replace remaining Codebuff, Inc. and bump Last updated date … #6229

Job	Run time
build-and-check	3m 6s
test-integration-packages/internal	1m 5s
test-integration-packages/billing	1m 33s
test-integration-web	48s
test-integration-common	42s
test-integration-cli	41s
test-integration-packages/agent-runtime	46s
test-packages/agent-runtime	47s
test-cli	59s
test-integration-sdk	1m 24s
test-common	46s
test-packages/internal	50s
test-packages/billing	46s
test-.agents	42s
test-sdk	48s
test-web	1m 5s
	16m 48s

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