Fix problems in tests scripts (#2320)

Author: lucacome

tests/scripts/create-and-setup-gcp-vm.sh

@@ -58,5 +58,6 @@ gcloud compute ssh --zone ${GKE_CLUSTER_ZONE} --project=${GKE_PROJECT} username@
 cd nginx-gateway-fabric/tests
 git fetch -pP --all
 git checkout ${NGF_BRANCH}
+git pull
 gcloud container clusters get-credentials ${GKE_CLUSTER_NAME} --zone ${GKE_CLUSTER_ZONE} --project=${GKE_PROJECT} --quiet
 EOF" -- -t

tests/scripts/create-gke-cluster.sh

@@ -34,5 +34,5 @@ gcloud container clusters create ${GKE_CLUSTER_NAME} \
 # Add current IP to GKE master control node access, if this script is not invoked during a CI run.
 if [ "${IS_CI}" = "false" ]; then
     SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
-    ./${SCRIPT_DIR}/add-local-ip-auth-networks.sh
+    ${SCRIPT_DIR}/add-local-ip-auth-networks.sh
 fi

tests/scripts/sync-files-to-vm.sh

@@ -2,7 +2,7 @@
 
 source scripts/vars.env
 
-NGF_DIR=$(dirname "$CUR")
+NGF_DIR=$(dirname "$PWD")
 
 gcloud compute config-ssh --ssh-config-file ngf-gcp.ssh > /dev/null