Bump org.springframework.vault:spring-vault-core

Bumps [org.springframework.vault:spring-vault-core](https://github.com/spring-projects/spring-vault) from 4.0.0-M3 to 4.0.0-SNAPSHOT.
- [Release notes](https://github.com/spring-projects/spring-vault/releases)
- [Commits](https://github.com/spring-projects/spring-vault/commits)

---
updated-dependencies:
- dependency-name: org.springframework.vault:spring-vault-core
  dependency-version: 4.0.0-SNAPSHOT
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

spring-cloud-vault-dependencies/pom.xml

@@ -20,7 +20,7 @@
 	<description>Spring Cloud Vault Dependencies</description>
 
 	<properties>
-		<spring-vault.version>4.0.0-RC1</spring-vault.version>
+		<spring-vault.version>4.0.0-SNAPSHOT</spring-vault.version>
 		<maven-enforcer-plugin.version>3.5.0</maven-enforcer-plugin.version>
 	</properties>