fix: 💬 update telegram link in the footer (#7187)

Author: mitra-deriv

src/templates/_common/_layout/footer.jsx

@@ -136,7 +136,7 @@ const Footer = () => (
                                     { media: 'youtube',   href: 'https://www.youtube.com/user/BinaryTradingVideos' },
                                     { media: 'facebook',  href: 'https://www.facebook.com/derivdotcom' },
                                     { media: 'twitter',   href: 'https://www.twitter.com/derivdotcom' },
-                                    { media: 'telegram',  href: 'https://t.me/binarydotcom' },
+                                    { media: 'telegram',  href: 'https://t.me/derivdotcomofficial' },
                                     { media: 'reddit',    href: 'https://www.reddit.com/user/Deriv_official/' },
                                 ]}
                             />
@@ -188,7 +188,7 @@ const Footer = () => (
                                     { media: 'facebook', href: 'https://www.facebook.com/derivUK/' },
                                     { media: 'twitter', href: 'https://www.twitter.com/deriv_uk/' },
                                     { media: 'instagram', href: 'https://www.instagram.com/deriv_uk/' },
-                                    { media: 'telegram', href: 'https://t.me/binarydotcom' },
+                                    { media: 'telegram', href: 'https://t.me/derivdotcomofficial' },
                                     { media: 'reddit', href: 'https://www.reddit.com/user/Deriv_official/' },
                                 ]}
                             />
@@ -200,7 +200,7 @@ const Footer = () => (
                                     { media: 'facebook', href: 'https://www.facebook.com/derivEU/' },
                                     { media: 'twitter', href: 'https://www.twitter.com/deriv_eu/' },
                                     { media: 'instagram', href: 'https://www.instagram.com/deriv_eu/' },
-                                    { media: 'telegram', href: 'https://t.me/binarydotcom' },
+                                    { media: 'telegram', href: 'https://t.me/derivdotcomofficial' },
                                     { media: 'reddit', href: 'https://www.reddit.com/user/Deriv_official/' },
                                 ]}
                             />