Add V2 sources and feed files

[aurangzaib048]

Related to #678

This will add new files feed.{LOCALE}.v2.json and sources.global.v2.json which excludes the un-used fields as well as format the feed according to the new format.

• keys_to_remove_v2 are the keys which will be excluded from the feed.locale.v2.json.
• publisher_include_keys_v2 are the keys which will be the parts of sources.global.v2.json.

New v2 format of the feed will be like:

{
    "3e4b01d03972894295e34f8dbc395745395641ffb3c58d7ec4aab0c545cfac1d":
    [
        {
            "title": "Christmas Toy Charity in Western Michigan Turns to Gift Cards After Fire",
            "publish_time": "2023-11-29 20:09:20",
            "description": "A charity that has been giving away Christmas gifts in the Grand Rapids area for more than 100 years said it will turn to gift cards next week",
            "content_type": "article",
            "publisher_id": "3e4b01d03972894295e34f8dbc395745395641ffb3c58d7ec4aab0c545cfac1d",
            "channels":
            [
                "US News"
            ],
            "url": "https://www.usnews.com/news/best-states/michigan/articles/2023-11-29/christmas-toy-charity-in-western-michigan-turns-to-gift-cards-after-fire",
            "pop_score": 1,
            "padded_img": "",
            "score": 15.403737755255854
        },
        {
            "title": "Kraft Debuts Dairy-Free Mac and Cheese in the US",
            "publish_time": "2023-11-29 20:08:38",
            "description": "Kraft Heinz says it’s bringing dairy-free macaroni and cheese to the U.S. for the first time",
            "content_type": "article",
            "publisher_id": "3e4b01d03972894295e34f8dbc395745395641ffb3c58d7ec4aab0c545cfac1d",
            "channels":
            [
                "US News"
            ],
            "url": "https://www.usnews.com/news/best-states/illinois/articles/2023-11-29/kraft-debuts-dairy-free-mac-and-cheese-in-the-us",
            "pop_score": 1,
            "padded_img": "",
            "score": 30.882698512023513
        }
    ],
    "9dfe110b0027d7bcbab5be6f42f4512172747474b293449ea25eb5239885c7a2":
    [
        {
            "title": "U.A.W. Announces Drive to Organize Nonunion Plants",
            "publish_time": "2023-11-29 20:10:07",
            "description": "The United Automobile Workers’ effort, with a long-elusive goal, follows its success in securing big raises in contracts with the Detroit automakers.",
            "content_type": "article",
            "publisher_id": "9dfe110b0027d7bcbab5be6f42f4512172747474b293449ea25eb5239885c7a2",
            "channels":
            [
                "US News",
                "Top Sources",
                "Top News"
            ],
            "url": "https://www.nytimes.com/2023/11/29/business/uaw-union-organizing.html",
            "pop_score": 1,
            "padded_img": "https://static01.nyt.com/images/2023/11/29/multimedia/29uaw-ktmw/29uaw-ktmw-mediumSquareAt3X.jpg",
            "score": 15.360765678585501
        },
        {
            "title": "Iranian and U.S. Attacks Could Lead to Larger War, Officials Say",
            "publish_time": "2023-11-29 19:04:19",
            "description": "U.S. forces and militias backed by Iran have launched tit-for-tat attacks, fueling concerns as Israeli forces have also clashed with Iranian-backed groups.",
            "content_type": "article",
            "publisher_id": "9dfe110b0027d7bcbab5be6f42f4512172747474b293449ea25eb5239885c7a2",
            "channels":
            [
                "US News",
                "Top Sources",
                "Top News"
            ],
            "url": "https://www.nytimes.com/2023/11/29/us/politics/israel-iran-gaza-us-attacks.html",
            "pop_score": 1,
            "padded_img": "https://static01.nyt.com/images/2023/11/28/multimedia/00dc-military-01-tvgl/00dc-military-01-tvgl-mediumSquareAt3X.jpg",
            "score": 34.873014623488885
        }
    ]
}

Fix:

• Remove un-used fields #613

[github-actions]

The following commits were not verified:
c2e6b90 (unsigned)

[LorenzoMinto]

it would be good to keep this field instead of padded_img as its name it's a bit misleading. The great majority of times padded_img is a url to a non-padded image anyways