install-from-source: update libssl for alpine

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.

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

src/linux/Packaging.Linux/install-from-source.sh

@@ -189,7 +189,7 @@ case "$distribution" in
         $sudo_cmd apk update
 
         # Install dotnet/GCM dependencies.
-        install_packages apk add "curl git icu-libs krb5-libs libgcc libintl libssl1.1 libstdc++ zlib which bash coreutils gcompat"
+        install_packages apk add "curl git icu-libs krb5-libs libgcc libintl libssl3 libstdc++ zlib which bash coreutils gcompat"
 
         ensure_dotnet_installed
     ;;