install-from-source: update libssl for alpine

[ldennington]

The validate-install-from-source workflow is currently failing [1]. According
to [2] and [3], the solution is to upgrade the libssl version from 1.1 to 3, as
version 1.1 is out of support. Since this version is only supported on Alpine
3.15 and later, we detect the version of Alpine the user is running on and set
this dependency version accordingly.

1: https://github.com/git-ecosystem/git-credential-manager/actions/runs/8604126129
2: https://stackoverflow.com/questions/77640298/dockerfile-unable-to-select-packages-linux-alpine
3: https://learn.microsoft.com/en-us/dotnet/core/install/linux-alpine

[mjcheetham]

This is the same PR as what @dscho did in #1535

The same issue occurs however in that we need to still use libssl1.1 for older versions of Alpine, so we need to update the script to switch on the Alpine version.

[ldennington]

The same issue occurs however in that we need to still use libssl1.1 for older versions of Alpine, so we need to update the script to switch on the Alpine version.

Not quite sure if I picked up what you're putting down, but I added a check to make sure the user is running on 3.15 or greater. Will that suffice?

[mjcheetham]

I'd like to propose this PR address this issue instead:
#1582

It copes with both 3.14 and 3.15+ Alpine requirements.

[ldennington]

Not quite sure if I picked up what you're putting down, but I added a check to make sure the user is running on 3.15 or greater. Will that suffice?

Actually, thinking about this a little more, it seemed like the best idea would be to set the version of libssl based on the version of Alpine the user is running. I've made updates accordingly and tested both scenarios (>3.14 and 3.14 and below) in my fork.

[ldennington]

I'd like to propose this PR address this issue instead:

#1582

It copes with both 3.14 and 3.15+ Alpine requirements.

Sorry! I didn't see this before submitting my updates. I'll take a look at your PR.

[ldennington]

Closed in favor of #1582