Start building against Spring Framework 7.0.1 snapshots

See gh-48168

Author: snicoll

gradle.properties

@@ -20,7 +20,7 @@ mavenVersion=3.9.10
 mockitoVersion=5.20.0
 nativeBuildToolsVersion=0.11.3
 snakeYamlVersion=2.5
-springFrameworkVersion=7.0.0
+springFrameworkVersion=7.0.1-SNAPSHOT
 springFramework60xVersion=6.0.23
 tomcatVersion=11.0.14
 nullabilityPluginVersion=0.0.8