Upgrade to Spring Boot 3

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        java: [1.8, 11]
+        java: [ 17 ]
       fail-fast: false
 
     steps:
@@ -52,7 +52,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 17
     - uses: jfrog/setup-jfrog-cli@v3
       with:
         version: 2.39.1