[Bot] Use correct token in backport bot (#5654) #6

Job	Run time
set-image	13s
test-frame-ui	5m 39s
test-full-crypto-feature	2m 58s
test-node-metrics	5m 41s
cargo-check-each-crate (1)	5m 38s
cargo-check-each-crate (2)	5m 39s
cargo-check-each-crate (3)	5m 35s
cargo-check-benches	0s
cargo-check-each-crate (4)	5m 40s
cargo-check-each-crate (5)	5m 34s
cargo-check-each-crate (6)	5m 33s
cargo-check-each-crate (7)	5m 33s
node-bench-regression-guard	8s
test-frame-examples-compile-to-wasm	1m 45s
test-deterministic-wasm	1s
check-tracing	1s
check-metadata-hash	1s
cargo-hfuzz	1s
All test misc tests passed	1s
	55m 41s

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