Fix incorrect log message referring to conda environment in venv validation

[Copilot]

The findVirtualEnvironments function in src/managers/builtin/venvUtils.ts was incorrectly logging "Invalid conda environment" when encountering invalid venv environments.

Issue

When the function processes venv environments and encounters one with missing required properties (prefix, executable, or version), it logs an error message that incorrectly references "conda environment" instead of "venv environment".

Root Cause

The function specifically filters for venv environments using:

.filter((e) => e.kind === NativePythonEnvironmentKind.venv)

But the error logging was copy-pasted from conda-related code and never updated:

log.warn(`Invalid conda environment: ${JSON.stringify(e)}`);  // ❌ Wrong!

Fix

Updated the log message to correctly reference the environment type being processed:

log.warn(`Invalid venv environment: ${JSON.stringify(e)}`);   // ✅ Correct!

This change ensures consistency with the function's purpose and with the success log message which already correctly states "Found venv environment".

Verification

• ✅ Only affects the error log message text
• ✅ No functional behavior changes
• ✅ Consistent with existing success log message
• ✅ No other instances of this issue found in codebase
• ✅ Passes all linting checks

Created from VS Code via the GitHub Pull Request extension.

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