[Extractors] Add maariv.co.il extractor

[amir16yp]

IMPORTANT: PRs without the template will be CLOSED

Description of your pull request and other information

Adds an extractor for https://maariv.co.il, an Israeli news website.
The generic extractor does not extract videos from articles so I decided to reverse engineer the site and make my own extractor. The extractor is by no means perfect but is suitable enough for it to be used now, I'd appreciate any feedback on this before merging.

Before submitting a pull request make sure you have:

• At least skimmed through contributing guidelines including yt-dlp coding conventions
• Searched the bugtracker for similar pull requests
• Checked the code with flake8 and ran relevant tests

In order to be accepted and merged into yt-dlp each piece of code must be in public domain or released under Unlicense. Check all of the following options that apply:

• I am the original author of this code and I am willing to release it under Unlicense
• I am not the original author of this code but it is in public domain or released under Unlicense (provide reliable evidence)

What is the purpose of your pull request?

• Fix or improvement to an extractor (Make sure to add/update tests)
• New extractor (Piracy websites will not be accepted)
• Core bug fix/improvement
• New feature (It is strongly recommended to open an issue first)

Copilot Summary

🤖 Generated by Copilot at 10ea327

Summary

📥📄🎥

Add support for extracting videos from maariv.co.il articles. Create a new file maariv.py that defines the MaarivIE extractor and import it in _extractors.py.

MaarivIE class
extracts videos from news
autumn of scraping

Walkthrough

• Add a new extractor for maariv.co.il (link, link)
  • Import the MaarivIE class from maariv.py in _extractors.py (link)
  • Define the MaarivIE class in maariv.py (link)

[amir16yp]

@seproDev I merged your suggestions. I ran a test download, while it downloads and lists formats just fine, however it fails the test
here's a log of the command

sneed@pc-~/Desktop/yt-dlp-> python test/test_download.py TestDownload.test_Maariv_all
E
======================================================================
ERROR: test_Maariv_all (__main__.TestDownload):
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/sneed/Desktop/yt-dlp/test/test_download.py", line 298, in test_template
    getattr(self, test_name)()
  File "/home/sneed/Desktop/yt-dlp/test/test_download.py", line 113, in test_template
    raise Exception(f'Test {tname} definition incorrect - "ext" key must be present to define the output file')
Exception: Test test_Maariv definition incorrect - "ext" key must be present to define the output file

----------------------------------------------------------------------
Ran 1 test in 0.000s

FAILED (errors=1)

I have no idea what this means exactly? what do i need to change?
also there's some merge conflicts with _extractors.py due to it being updated since
@bashonly

[bashonly]

@amir16yp I fixed some things. Pull and try again
python test/test_download.py TestDownload.test_Maariv
python test/test_download.py TestDownload.test_Maariv_webpage

the tests will fail at first, but should output the missing info_dict fields that you can copy/paste