LOS ANGELES — The cast of the hit TV comedy “Friends” on Tuesday offered six fans the chance to join them for their upcoming reunion show, which will raise funds for those worst-affected by the coronavirus epidemic.“The One Where You Meet the Entire Cast of ‘Friends’” was the latest celebrity entry into the #AllInChallenge launched in the United States to raise money to help feed Americans most at risk because of the pandemic.Stars Jennifer Aniston, Lisa Kudrow, Courteney Cox, David Schwimmer, Matt LeBlanc and Matthew Perry announced the contest on their social media platforms.“Be our personal guests in the audience for the taping of our @HBOMAX reunion, as we reminisce about the show and celebrate all the fun we had… and get the whole