Fix NUM_COMPONENTS_TO_STRIP default behavior when 0 is specified

[coderabbitai]

Issue Description

In taskfiles/utils-remote.yaml, the download-and-extract-tar task has a parameter NUM_COMPONENTS_TO_STRIP with a default value of 1. However, due to sprig's default function treating numeric 0 as an empty value, explicitly setting NUM_COMPONENTS_TO_STRIP=0 results in 1 being used instead.

Reference: https://masterminds.github.io/sprig/defaults.html#default

Workaround

Users can specify NUM_COMPONENTS_TO_STRIP="0" (as a string) in the caller to work around this issue.

Potential Solutions

1. Change the default value to 0
2. Check if the user explicitly specifies the var; only if the var is not specified, default to 1
3. Document the behavior and mitigation/expected usage explicitly

Context

• PR: feat(taskfiles)!: Split utils taskfile by category; Rename extension from yml to yaml. #18
• Comment: feat(taskfiles)!: Split utils taskfile by category; Rename extension from yml to yaml. #18 (comment)
• Reported by: @junhaoliao