Update weaviate versions to latest

Author: dirkkul

.github/workflows/main.yaml

@@ -53,10 +53,10 @@ jobs:
       fail-fast: false
       matrix:
         server:
-          - 1.31.16
-          - 1.32.11
-          - 1.33.0
-          - 1.34.0-rc.0
+          - 1.31.20
+          - 1.32.17
+          - 1.33.5
+          - 1.34.0
 
     steps:
       - name: Check for required secrets