Quote options before adding them to the options array

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

update-make-docs/action.yml

@@ -81,14 +81,14 @@ runs:
         # For example, pr_options: --label 'backport v10.0.x'
         OPTIONS_ARRAY=()
         while IFS= read -r -d '' arg; do
-          OPTIONS_ARRAY+=("$arg")
+          OPTIONS_ARRAY+=("$(printf "%q" "$arg")")
         done < <(echo "${PR_OPTIONS}" | xargs printf '%s\0')
 
         if ! git diff --exit-code; then
           commit
           git push origin "refs/heads/${BRANCH}"
           # Set default options before the user-provided ones as later options appear to override earlier ones.
           # For example, in `gh pr create --web --title foo --title bar`, the resulting title is "bar".
-          gh pr create --title  'Update `make docs` procedure' --body '' ${OPTIONS_ARRAY[@]}
+          gh pr create --title  'Update `make docs` procedure' --body '' "${OPTIONS_ARRAY[@]}"
         fi
       shell: bash