fix!: remove deprecated variables #5177

Job	Run time
Verify module (1.5.6)	30s
Verify module (latest)	14s
Verify examples (1.5.6, default)	24s
Verify examples (1.5.6, ubuntu)	28s
Verify modules (1.5.6, ami-housekeeper)	19s
Verify examples (1.5.6, prebuilt)	24s
Verify modules (1.5.6, download-lambda)	15s
Verify examples (1.5.6, arm64)	28s
Verify modules (1.5.6, lambda)	14s
Verify examples (1.5.6, ephemeral)	27s
Verify modules (1.5.6, multi-runner)	20s
Verify examples (1.5.6, termination-watcher)	31s
Verify modules (1.5.6, runner-binaries-syncer)	17s
Verify examples (1.5.6, windows)	33s
Verify modules (1.5.6, runners)	20s
Verify examples (1.5.6, multi-runner)	27s
Verify modules (1.5.6, setup-iam-permissions)	21s
Verify examples (latest, default)	16s
Verify examples (latest, ubuntu)	13s
Verify modules (1.5.6, ssm)	18s
Verify examples (latest, prebuilt)	16s
Verify modules (1.5.6, termination-watcher)	23s
Verify examples (latest, arm64)	19s
Verify modules (1.5.6, webhook)	28s
Verify modules (latest, ami-housekeeper)	12s
Verify examples (latest, ephemeral)	18s
Verify modules (latest, download-lambda)	14s
Verify examples (latest, termination-watcher)	16s
Verify modules (latest, lambda)	16s
Verify examples (latest, windows)	25s
Verify modules (latest, multi-runner)	18s
Verify examples (latest, multi-runner)	23s
Verify modules (latest, runner-binaries-syncer)	15s
Verify modules (latest, runners)	16s
Verify modules (latest, setup-iam-permissions)	15s
Verify modules (latest, ssm)	12s
Verify modules (latest, termination-watcher)	15s
Verify modules (latest, webhook)	15s
	12m 35s

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