Update attachment command to support zip files

[gayanW]

The record attachment command is updated to also support zip files.

Let says user have the following files:

  test-logs/
  ├── test-app.log
  └── logs.zip
      ├── nested/
      │   └── debug.log
      └── binary-test.dat

Usage:

+ launchable record attachment --session $session test-logs/test-app.log

| File                   | Status                  |
|------------------------|-------------------------|
| test-logs/test-app.log | ✓ Recorded successfully |

+ launchable record attachment --session $session test-logs/logs.zip
| File             | Status                           |
|------------------|----------------------------------|
| nested/debug.log | ✓ Recorded successfully          |
| binary-test.dat  | ⚠ Skipped: not a valid text file |

[ono-max]

If you use tempfile.TemporaryDirectory(), all its contents are automatically cleaned up.

[gayanW]

Fixed.

[ono-max]

Approved this PR not to block you.