Fix already-installed check

Author: elopez

solc_select/services/artifact_manager.py

@@ -176,8 +176,9 @@ def download_and_install(self, version: SolcVersion, silent: bool = False) -> bo
             InstallationError: If installation fails
             ChecksumMismatchError: If checksum verification fails
         """
-        if self.is_installed(version) and not silent:
-            print(f"Version '{version}' is already installed, skipping...")
+        if self.is_installed(version):
+            if not silent:
+                print(f"Version '{version}' is already installed, skipping...")
             return True
 
         if not silent: