Fix arkade get helmfile for Mac ARM, update owner repo

[Jasstkn]

Signed-off-by: Mariia Kotliarevskaia mariia.kotliarevskaia@gmail.com

Fixes helmfile installation for mac arm64

Description

• fixes helmfile installation for mac arm64 arch
• switch to official org for helmfile (https://github.com/helmfile/helmfile)
• update template to support tar.gz format instead of plain binaries

Motivation and Context

• I have raised an issue to propose this change, which has been given a label of design/approved by a maintainer (required)

fixes #760

How Has This Been Tested?

./hack/test-tool.sh helmfile
+ go build
+ ./arkade get helmfile --arch arm64 --os darwin --quiet
+ file /Users/mariakot/.arkade/bin/helmfile
/Users/mariakot/.arkade/bin/helmfile: Mach-O 64-bit executable arm64
+ rm /Users/mariakot/.arkade/bin/helmfile
+ ./arkade get helmfile --arch x86_64 --os darwin --quiet
+ file /Users/mariakot/.arkade/bin/helmfile
/Users/mariakot/.arkade/bin/helmfile: Mach-O 64-bit executable x86_64
+ rm /Users/mariakot/.arkade/bin/helmfile
+ ./arkade get helmfile --arch x86_64 --os linux --quiet
+ file /Users/mariakot/.arkade/bin/helmfile
/Users/mariakot/.arkade/bin/helmfile: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, Go BuildID=gyj-ZT85t6VbnD6QYDdx/_hHFrFZC6adfyaEx8vsN/o2icmceVllDBHxeh9ihn/G_0zozUJdSnV_-FxyRUJ, stripped
+ rm /Users/mariakot/.arkade/bin/helmfile
+ ./arkade get helmfile --arch arm64 --os linux --quiet
+ file /Users/mariakot/.arkade/bin/helmfile
/Users/mariakot/.arkade/bin/helmfile: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, Go BuildID=LL4mt4iONpOLWZeNVx6m/oQ-d6UNOkd6POSVNFcUh/RXnLupWiTy1nP31n8Ct8/STlnkwOCfIqujWP8r8Et, stripped
+ rm /Users/mariakot/.arkade/bin/helmfile
+ ./arkade get helmfile --arch x86_64 --os ming
+ file /Users/mariakot/.arkade/bin/helmfile
/Users/mariakot/.arkade/bin/helmfile: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, Go BuildID=LL4mt4iONpOLWZeNVx6m/oQ-d6UNOkd6POSVNFcUh/RXnLupWiTy1nP31n8Ct8/STlnkwOCfIqujWP8r8Et, stripped
+ rm /Users/mariakot/.arkade/bin/helmfile

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• Yes
• No

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Documentation

• I have updated the list of tools in README.md if (required) with ./arkade get -o markdown
• I have updated the list of apps in README.md if (required) with ./arkade install --help

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.

• I have tested this on arm, or have added code to prevent deployment