Auto-update dependencies. (GoogleCloudPlatform#956)

Author: dpebot

appengine/php55/grpc/composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
         "google/cloud-spanner": "^1.15.0",
-        "google/cloud-monitoring": "^0.17.0",
+        "google/cloud-monitoring": "^0.18.0",
         "google/appengine-php-sdk": "^1.9"
     }
 }

appengine/php72/grpc/composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
         "google/cloud-spanner": "^1.15.0",
-        "google/cloud-monitoring": "^0.17.0",
+        "google/cloud-monitoring": "^0.18.0",
         "google/cloud-speech": "^0.27.0"
     },
     "require-dev": {

monitoring/composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
         "symfony/console": "^3.3",
-        "google/cloud-monitoring": "^0.17.0"
+        "google/cloud-monitoring": "^0.18.0"
     },
     "autoload": {
         "files": [