fix (EXC-1590): make burning cycles configurable #1191

Job	Run time
ShellCheck	9s
cargo-build (ubuntu-20.04)	4m 4s
cargo-build (macos-12)	8m 11s
rustfmt	20s
canister-build-reproducibility	3m 21s
cargo-clippy	1m 32s
benchmark	4m 8s
charge-cycles-on-reject	2m 29s
cycles_burn	2m 15s
cargo-tests (ubuntu-20.04)	3m 59s
cargo-tests (macos-12)	2m 59s
e2e-disable-api-if-not-fully-synced-flag	2m 14s
e2e-scenario-1	2m 16s
e2e-scenario-2	2m 29s
e2e-scenario-3	2m 15s
set_config	2m 9s
upgradability	2m 30s
watchdog_get_config	2m 33s
watchdog_health_status	2m 35s
watchdog_metrics	2m 27s
watchdog_upgradability	2m 59s
checks-pass	1s
	57m 55s

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