Failing SSL-Verify throws no helpful error

[domrim]

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Overview of the Issue

When trying to connect with an proxmox server with self-signed certificate and insecure_skip_tls_verify is not set to true the thrown error is not helpful.

Reproduction Steps

Use a proxmox server with self-signed certificate and insecure_skip_tls_verify = false.

Plugin and Packer version

From packer version:

Packer v1.8.2

packer init:

Installed plugin github.com/hashicorp/proxmox v1.0.8 in "/usr/local/bin/github.com/hashicorp/proxmox/packer-plugin-proxmox_v1.0.8_x5.0_darwin_amd64"

Simplified Packer Buildfile

https://gist.github.com/domrim/26b55d30da707ff01907cc7535283388#file-debian-bullseye-pkr-hcl

Operating system and Environment details

macOS 12.4, packer installed with homebrew

Log Fragments and crash.log files

https://gist.github.com/domrim/26b55d30da707ff01907cc7535283388#file-crash-log