Fix a typo in BazelUtils.groovy

Change-Id: I81fd036f2e6acefba472942ff7c15aaf2878d6e6
diff --git a/jenkins/lib/src/build/bazel/ci/BazelUtils.groovy b/jenkins/lib/src/build/bazel/ci/BazelUtils.groovy
index ea944c5..816cd09 100644
--- a/jenkins/lib/src/build/bazel/ci/BazelUtils.groovy
+++ b/jenkins/lib/src/build/bazel/ci/BazelUtils.groovy
@@ -87,7 +87,7 @@
       def bazelDir = bazel.substring(0, bazel.lastIndexOf("/"))
       pathWithBazel = "${bazelDir}:${this.script.env.PATH}"
     }
-    this.script.withEnv(["PATH=${PathWithBazel}",
+    this.script.withEnv(["PATH=${pathWithBazel}",
           "BAZEL=${this.bazel}"] + envs) {
       if (isWindows) {
         this.script.bat script