CI: fix wrong git config env variables (kubernetes-sigs#12079)

Author: VannTen

.gitlab-ci.yml

@@ -8,11 +8,11 @@ stages:
 variables:
   FAILFASTCI_NAMESPACE: 'kargo-ci'
   GITLAB_REPOSITORY: 'kargo-ci/kubernetes-sigs-kubespray'
-  GIT_CONFIG_COUNT: 1
-  GIT_CONFIG_KEY_0: user.key
+  GIT_CONFIG_COUNT: 2
+  GIT_CONFIG_KEY_0: user.email
   GIT_CONFIG_VALUE_0: "[email protected]"
   GIT_CONFIG_KEY_1: user.name
-  GIT_CONFIG_VALUE_1: "CI"
+  GIT_CONFIG_VALUE_1: "Kubespray CI"
   ANSIBLE_FORCE_COLOR: "true"
   MAGIC: "ci check this"
   GS_ACCESS_KEY_ID: $GS_KEY