chore: Update funding.yml with donation links

.github/FUNDING.yml

@@ -0,0 +1,15 @@
+# These are supported funding model platforms
+
+# github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+# patreon: # Replace with a single Patreon username
+# open_collective: # Replace with a single Open Collective username
+ko_fi: lockedmutex
+# tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+# community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: lockedmutex
+# issuehunt: # Replace with a single IssueHunt username
+# lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+# polar: # Replace with a single Polar username
+# buy_me_a_coffee: # Replace with a single Buy Me a Coffee username
+# thanks_dev: # Replace with a single thanks.dev username
+# custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']