Fix log message to correctly reference invalid venv environment not conda

Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>

Author: Copilot

src/managers/builtin/venvUtils.ts

@@ -180,7 +180,7 @@ export async function findVirtualEnvironments(
 
     for (const e of envs) {
         if (!(e.prefix && e.executable && e.version)) {
-            log.warn(`Invalid conda environment: ${JSON.stringify(e)}`);
+            log.warn(`Invalid venv environment: ${JSON.stringify(e)}`);
             continue;
         }