Update dependency org.springframework.cloud:spring-cloud-dependencies to v2021.0.8 (#920)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -22,7 +22,7 @@ buildscript {
         // https://github.com/spring-projects/spring-boot/releases
         springBootVersion = '2.7.14'
         // https://github.com/spring-cloud/spring-cloud-release/releases
-        springCloudVersion = '2021.0.7'
+        springCloudVersion = '2021.0.8'
         // https://github.com/alibaba/spring-cloud-alibaba/releases
         springCloudAlibabaNacosVersion = '2021.1'