Jenkinsfile: Skip worker build for more cases

We can skip the CI worker build if the changes are only from gitlint, or
the hidden files in the root folder, such as .github, .gitignore,
.gitlint, .rustfmt.toml, and .typos.toml.

Signed-off-by: Bo Chen <chen.bo@intel.com>

Jenkinsfile

@@ -512,5 +512,19 @@ def boolean skipWorkerBuild() {
         return true
     }
 
+    if (sh(
+        returnStatus: true,
+        script: "git diff --name-only origin/${env.CHANGE_TARGET}... | grep -v '^\\.'"
+    ) != 0) {
+        return true
+    }
+
+    if (sh(
+        returnStatus: true,
+        script: "git diff --name-only origin/${env.CHANGE_TARGET}... | grep -v 'gitlint'"
+    ) != 0) {
+        return true
+    }
+
     return false
 }