sniff.py, sniffer.py, impacket-{sniff, sniffer}: add page

[MachiavelliII]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[Managor]

Huh?

[kbdharun]

Huh?

Hi, I triggered a re-run of the CI after removing an unused action secret in the repo to see if the tldr-bot comment part is affected, and fortunately it is working fine.

The output this time is bigger than modified files in this PR since changes from main branch is present due to the previous merge commit.