Update mitre/heimdall_tools Docker tag to v1.3.46

This MR contains the following updates:

Package	Type	Update	Change
mitre/heimdall_tools		patch	1.3.45 -> v1.3.46
mitre/heimdall_tools		patch	1.3.44 -> v1.3.46
mitre/heimdall_tools	stage	patch	v1.3.45 -> v1.3.46

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