Fix fleeting plugin installation architecture selection

Arran Walkerrequested to merge
38247-incompatible-fleeting-plugin-installed into main

What does this MR do?

Upgrades fleeting-artifact dependency.

Why was this MR needed?

Needed to fix plugin architecture selection.

What's the best way to test this MR?

On a Linux/amd64 system, use dummy.toml config:

[[runners]]
  name = "my runner"
  url = "https://gitlab.com"
  token = "<token>"
  shell = "sh"

  executor = "instance"

  [runners.autoscaler]
    plugin = "aws:latest"

Run gitlab-runner fleeting -c dummy.toml install. The installation path is given back. Run file <path> and it'll tell you what architecture it is. It is now 62-bit, whereas previously it was 32-bit.

What are the relevant issue numbers?

Closes #38247 (closed)

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