GH-958 - Upgrade to Spring Boot 3.3.6.

Author: odrotbohm

.github/workflows/integration.yaml

@@ -11,10 +11,11 @@ jobs:
       matrix:
         version:
         - '3.1.12'
-        - '3.2.11'
-        - '3.2.12-SNAPSHOT'
-        - '3.3.6-SNAPSHOT'
-        - '3.4.0-SNAPSHOT'
+        - '3.2.12'
+        - '3.2.13-SNAPSHOT'
+        - '3.3.7-SNAPSHOT'
+        - '3.4.0'
+        - '3.4.1-SNAPSHOT'
     name: Build against Boot ${{ matrix.version }}
     runs-on: ubuntu-latest