Fix CI & Git links in the Gradle build file

**Auto-cherry-pick to `7.0.x` & `6.5.x`**

Author: artembilan

build.gradle

@@ -38,11 +38,11 @@ description = 'Spring Integration'
 
 ext {
     linkHomepage = 'https://projects.spring.io/spring-integration'
-    linkCi = 'https://build.spring.io/browse/INT'
+    linkCi = 'https://github.com/spring-projects/spring-integration/actions/workflows/ci-snapshot.yml'
     linkIssue = 'https://github.com/spring-projects/spring-integration/issues'
     linkScmUrl = 'https://github.com/spring-projects/spring-integration'
-    linkScmConnection = 'scm:git:git://github.com/spring-projects/spring-integration.git'
-    linkScmDevConnection = 'scm:git:ssh://git@github.com:spring-projects/spring-integration.git'
+    linkScmConnection = 'git://github.com/spring-projects/spring-integration.git'
+    linkScmDevConnection = 'git@github.com:spring-projects/spring-integration.git'
 
     apacheSshdVersion = '2.17.1'
     artemisVersion = '2.51.0'