Add check for CHANGELOG.md change when changelog label applied to PR … #8

Job	Run time
cargo-test-sbf (token/program)	18m 5s
check	0s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	32m 15s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	17m 51s
test	0s
cargo-test-sbf (token-upgrade/program)	17m 30s
cargo-test-sbf (feature-proposal/program)	17m 48s
cargo-test-sbf (governance/addin-mock/program, governance/program)	27m 14s
cargo-test-sbf (memo/program)	18m 53s
cargo-test-sbf (name-service/program)	18m 48s
cargo-test-sbf (stake-pool/program)	23m 55s
cargo-test-sbf (single-pool/program)	19m 23s
	3h 31m 42s

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