Add Copyright Year to Footer

[SaiTejaswaniBikkasani]

Hey @codervivek5 . The website's footer currently does not display the copyright year. To comply with legal requirements and provide users with up-to-date information, we need to add the current year to the copyright notice in the footer.

Before making the changes:

After making the changes:

Please assign the gssoc labels and I would like to work on it under GSSOC'24. Thank you!!