Pin Alpine checkout path to immutable checkout@v4 SHA in verify_install workflow

[Copilot]

The review feedback called out that Alpine-specific checkout handling should be explicitly pinned to a valid actions/checkout@v4 commit SHA. This updates only that Alpine path in verify_install to match the requested pinning behavior.

• Workflow change

  • Updated .github/workflows/verify_install.yaml for the Alpine < 3.17 conditional checkout step.
  • Replaced the prior SHA on the Alpine branch with the requested immutable SHA:
    • 08eba0b27e820071cde6df949e0beb9ba4906955

• Scope

  • No other workflow branches or jobs were modified.
  • Change is limited to the review-commented Alpine checkout path.

# Use checkout@v4 for Alpine versions < 3.17 that don't support Node.js 24
- if: contains(matrix.hostname, 'alpine3.13') || contains(matrix.hostname, 'alpine3.14') || contains(matrix.hostname, 'alpine3.15') || contains(matrix.hostname, 'alpine3.16')
  uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955

[tammy-baylis-swi]

This corresponds with to checkout v4.1.7: https://github.com/actions/checkout/releases?page=2#release-v4.1.7

@copilot Change to v4.3.1 via 08eba0b27e820071cde6df949e0beb9ba4906955

[Copilot]

This corresponds with to checkout v4.1.7: https://github.com/actions/checkout/releases?page=2#release-v4.1.7

@copilot Change to [v4.3.1](https://github.com/actions/checkout/releases?page=1#releas...

Updated in commit 950d169 to use actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 for the Alpine checkout path.