Update test snapshot versions

Author: jgrandja

.github/workflows/continuous-integration-workflow.yml

@@ -25,7 +25,7 @@ jobs:
     name: Test Against Snapshots
     uses: spring-io/spring-security-release-tools/.github/workflows/test.yml@v1
     with:
-      test-args: --refresh-dependencies --stacktrace -PforceMavenRepositories=snapshot -PspringFrameworkVersion=6.1.+ -PspringSecurityVersion=6.3.+
+      test-args: --refresh-dependencies --stacktrace -PforceMavenRepositories=snapshot -PspringFrameworkVersion=6.2.+ -PspringSecurityVersion=6.4.+
     secrets: inherit
   deploy-artifacts:
     name: Deploy Artifacts
@@ -52,4 +52,4 @@ jobs:
       release-repo-url: https://repo1.maven.org/maven2
       artifact-path: org/springframework/security/spring-security-oauth2-authorization-server
       slack-announcing-id: spring-authorization-server-announcing
-    secrets: inherit
+    secrets: inherit