Bump alpine docker image to 3.16 & ensure it's used in tests

Author: Gedochao

build.sc

@@ -18,7 +18,7 @@ import $file.project.settings, settings.{
   projectFileName,
   jvmPropertiesFileName
 }
-import $file.project.deps, deps.customRepositories
+import $file.project.deps, deps.customRepositories, deps.alpineVersion
 import $file.project.website
 
 import java.io.File
@@ -184,6 +184,7 @@ trait DocsTests extends CrossSbtModule with ScalaCliScalafixModule with HasTests
          |  def coursierCliModule = "${Deps.coursierCli.dep.module.name.value}"
          |  def coursierCliVersion = "${Deps.Versions.coursierCli}"
          |  def defaultScalaVersion = "${Scala.defaultUser}"
+         |  def alpineVersion = "$alpineVersion"
          |}
          |""".stripMargin
     if (!os.isFile(dest) || os.read(dest) != code)
@@ -544,6 +545,8 @@ trait Core extends ScalaCliCrossSbtModule
          |  def mavenAppVersion = "${Deps.Versions.mavenAppVersion}"
          |
          |  def scalafixVersion = "${Deps.Versions.scalafix}"
+         |  
+         |  def alpineVersion = "$alpineVersion"
          |}
          |""".stripMargin
     if (!os.isFile(dest) || os.read(dest) != code)

modules/cli/src/main/scala/scala/cli/commands/github/LibSodiumJni.scala

@@ -40,13 +40,14 @@ object LibSodiumJni {
 
   private def libsodiumVersion    = Constants.libsodiumVersion
   private def libsodiumjniVersion = Constants.libsodiumjniVersion
+  private def alpineVersion       = Constants.alpineVersion
 
   private def archiveUrlAndPath() =
     if (Properties.isLinux && launcherKindOpt.contains("static"))
       // Should actually be unused, as we statically link libsodium from the static launcher
       // Keeping it just-in-case. This could be useful from a musl-based JVM.
       (
-        s"https://dl-cdn.alpinelinux.org/alpine/v3.15/main/x86_64/libsodium-$libsodiumVersion-r0.apk",
+        s"https://dl-cdn.alpinelinux.org/alpine/v$alpineVersion/main/x86_64/libsodium-$libsodiumVersion-r0.apk",
         os.rel / "usr" / "lib" / "libsodium.so.23.3.0" // FIXME Could this change?
       )
     else {

modules/docs-tests/src/test/scala/sclicheck/GifTests.scala

@@ -171,7 +171,7 @@ class GifTests extends munit.FunSuite {
             ttyOpts,
             "-v",
             s"$out:/out",
-            "alpine:3.16.2",
+            s"alpine:${Constants.alpineVersion}",
             "sh",
             "-c",
             "rm -rf /out/* || true; rm -rf /out/.* || true"

project/deps.sc

@@ -285,17 +285,16 @@ def buildCsM1Version = Deps.Versions.coursierM1Cli
 // Native library used to encrypt GitHub secrets
 def libsodiumVersion = "1.0.18"
 // Using the libsodium static library from this Alpine version (in the static launcher)
-def alpineVersion = "3.15"
+def alpineVersion = "3.16"
 def ubuntuVersion = "24.04"
 
 object Docker {
   def customMuslBuilderImageName = "scala-cli-base-musl"
   def muslBuilder =
     s"$customMuslBuilderImageName:latest"
 
-  def testImage = s"ubuntu:$ubuntuVersion"
-  def alpineTestImage =
-    "alpine@sha256:4edbd2beb5f78b1014028f4fbb99f3237d9561100b6881aabbf5acce2c4f9454"
+  def testImage       = s"ubuntu:$ubuntuVersion"
+  def alpineTestImage = s"alpine:$alpineVersion"
   def authProxyTestImage =
     "bahamat/authenticated-proxy@sha256:568c759ac687f93d606866fbb397f39fe1350187b95e648376b971e9d7596e75"
 }

project/settings.sc

@@ -242,7 +242,7 @@ trait CliLaunchers extends SbtModule { self =>
         cs,
         "get",
         "--archive",
-        "https://download.libsodium.org/libsodium/releases/libsodium-1.0.18-stable-msvc.zip"
+        s"https://download.libsodium.org/libsodium/releases/libsodium-$libsodiumVersion-stable-msvc.zip"
       ).call()
       val dir = os.Path(dirRes.out.trim(), os.pwd)
       os.copy.over(