fix: retry the jq installation in case of errors (#1033)

## Description

In case of network connection problems, the `yum` operations ends with
an error. This PR adds a retry to install `jq`.

## Migrations required

NO

## Verification

Confirmed this works for my setup by vendoring this module with these
changes.

---------

Co-authored-by: Ryan Causey <ryan.causey@munipal.io>
Co-authored-by: Matthias Kay <matthias.kay@hlag.com>
Co-authored-by: Matthias Kay <github@matthiaskay.de>

template/gitlab-runner.tftpl

@@ -1,8 +1,3 @@
-# Install jq if not exists
-if ! [ -x "$(command -v jq)" ]; then
-  yum install jq -y
-fi
-
 # Provide the parent instance id in the spawned runner tags
 PARENT_INSTANCE_ID=$(curl -s -H "X-aws-ec2-metadata-token: $token" http://169.254.169.254/latest/dynamic/instance-identity/document | jq -r .instanceId)
 PARENT_TAG="gitlab-runner-parent-id,$PARENT_INSTANCE_ID"

template/yum_update.tftpl

@@ -2,3 +2,10 @@ for i in {1..7}; do
   echo "Attempt: ---- " $i
   yum -y update && break || sleep 60
 done
+
+# Install additional programs needed by the scripts
+for i in {1..7}
+do
+  echo "Attempt: ---- " $i
+  yum install -y jq && break || sleep 60
+done