fix: Disable interpolation of HEREDOC strings containing runner hook … #5565

Job	Run time
Verify examples (1.5.6, default)	36s
Verify module (1.5.6)	30s
Verify examples (1.5.6, prebuilt)	29s
Verify module (latest)	16s
Verify examples (1.5.6, ephemeral)	29s
Verify modules (1.5.6, ami-housekeeper)	22s
Verify examples (1.5.6, termination-watcher)	25s
Verify examples (1.5.6, multi-runner)	31s
Verify modules (1.5.6, download-lambda)	15s
Verify examples (latest, default)	18s
Verify modules (1.5.6, lambda)	15s
Verify examples (latest, prebuilt)	20s
Verify modules (1.5.6, multi-runner)	21s
Verify examples (latest, ephemeral)	27s
Verify modules (1.5.6, runner-binaries-syncer)	19s
Verify examples (latest, termination-watcher)	15s
Verify modules (1.5.6, runners)	22s
Verify examples (latest, multi-runner)	16s
Verify modules (1.5.6, setup-iam-permissions)	18s
Verify modules (1.5.6, ssm)	25s
Verify modules (1.5.6, termination-watcher)	14s
Verify modules (1.5.6, webhook)	15s
Verify modules (latest, ami-housekeeper)	17s
Verify modules (latest, download-lambda)	18s
Verify modules (latest, lambda)	13s
Verify modules (latest, multi-runner)	20s
Verify modules (latest, runner-binaries-syncer)	16s
Verify modules (latest, runners)	15s
Verify modules (latest, setup-iam-permissions)	14s
Verify modules (latest, ssm)	15s
Verify modules (latest, termination-watcher)	18s
Verify modules (latest, webhook)	17s
	10m 41s

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