DEVX-93: fix: force pip upgrade in setup-image to install new dependencies

tests/unit/test_install_checkmake.py

@@ -8,21 +8,22 @@ import pytest
 from click import ClickException
 
 import devx.tools.install_checkmake as install_checkmake
+from devx.tools._shared import arch_string
 
 
-class TestArch:
+class TestArchString:
     def test_amd64(self) -> None:
         with patch.object(platform, "machine", return_value="x86_64"):
-            assert install_checkmake._arch() == "amd64"
+            assert arch_string() == "amd64"
 
     def test_arm64(self) -> None:
         with patch.object(platform, "machine", return_value="aarch64"):
-            assert install_checkmake._arch() == "arm64"
+            assert arch_string() == "arm64"
 
     def test_unsupported(self) -> None:
         with patch.object(platform, "machine", return_value="riscv64"):
             with pytest.raises(ClickException):
-                install_checkmake._arch()
+                arch_string()
 
 
 class TestInstallWithGo: