chore: change required spanner version (1.27)

ava12 · ava12 · commit db93ed6fcc29 · 2020-03-26T13:02:40.000+03:00
diff --git a/spanner/composer.json b/spanner/composer.json
@@ -1,6 +1,6 @@
 {
     "require": {
-        "google/cloud-spanner": "^1.26",
+        "google/cloud-spanner": "^1.27",
         "symfony/console": "^3.2"
     },
     "autoload": {
