script: update rekick script with 4.18 jobs (#3012)

Author: sebrandon1

script/rekick-failed-workflows.sh

@@ -15,10 +15,12 @@ WORKFLOWS_TO_CHECK=(
 	"QE OCP 4.15 Testing"
 	"QE OCP 4.16 Testing"
 	"QE OCP 4.17 Testing"
+	"QE OCP 4.18 Testing"
 	"QE OCP 4.14 Intrusive Testing"
 	"QE OCP 4.15 Intrusive Testing"
 	"QE OCP 4.16 Intrusive Testing"
 	"QE OCP 4.17 Intrusive Testing"
+	"QE OCP 4.18 Intrusive Testing"
 	"OCP ARM64 4.16 QE Testing"
 	"qe-ocp-hosted.yml"
 )