Release Post for v1.11.0 (#1346)

Author: wyattwenzel

website/docusaurus.config.ts

@@ -208,7 +208,7 @@ const config: Config = {
       { name: 'twitter:creator', content: '@spice_ai' }
     ],
     announcementBar: {
-      content: '<a href="/releases/v1.10.4">Spice.ai OSS v1.10.4</a> is now available! ⚡',
+      content: '<a href="/releases/v1.11.0">Spice.ai OSS v1.11.0</a> is now available! ⚡',
       backgroundColor: 'var(--announcement-bar-bg)',
       textColor: 'var(--announcement-bar-text)',
       isCloseable: true