pay-v0.21.0

What's Changed

• ci(npm-publish): bump setup-node to v6 to fix OIDC trusted publishing by @amilz in #382
• feat: pay push --confidential / confidential mpp charges by @lgalabru in #381
• docs: README banner + centered protocol badges by @lgalabru in #386
• fix: devex improvements by @lgalabru in #388
• feat: devex improvements (session 2) by @lgalabru in #389
• feat: rewrite proxy using cloudflare/pingora by @lgalabru in #385
• fix: dockerfile by @lgalabru in #390
• fix(types): validate split-recipient uniqueness per payment method by @lgalabru in #391
• fix: memo by @lgalabru in #392
• fix: unblock release ci and catalog probing by @lgalabru in #393

Full Changelog: pay-v0.20.0...pay-v0.21.0