ci: align tags with build number

Jenkinsfile

@@ -123,8 +123,11 @@ spec:
               if (!base) {
                 base = "0.1.0"
               }
-              def count = sh(returnStdout: true, script: 'git rev-list --count HEAD').trim()
-              semver = "${base}-${count}"
+              def buildNum = env.BUILD_NUMBER?.trim()
+              if (!buildNum) {
+                buildNum = sh(returnStdout: true, script: 'git rev-list --count HEAD').trim()
+              }
+              semver = "${base}-${buildNum}"
             }
             sh "echo SEMVER=${semver} > build.env"
           }

VERSION_BASE

@@ -1 +1 @@
-0.1.1
+0.1.2