Applied patch for CI to work per https://github.com/nextcloud/server/pull/9760#issuecomment-396888591

Signed-off-by: Johannes Ernst <jernst@indiecomputing.com>

.drone.yml

@@ -67,7 +67,7 @@ pipeline:
       matrix:
         TESTS: syntax-php7.1
   phan:
-    image: nextcloudci/php7.2:php7.2-11
+    image: nextcloudci/php7.2:php7.2-12
     commands:
       - composer install
       - composer require --dev "phan/phan:0.11.1"
@@ -184,7 +184,7 @@ pipeline:
         DB: NODB
         PHP: 7.1
   nodb-php7.2:
-    image: nextcloudci/php7.2:php7.2-11
+    image: nextcloudci/php7.2:php7.2-12
     commands:
       - NOCOVERAGE=true TEST_SELECTION=NODB ./autotest.sh sqlite
     when:
@@ -208,7 +208,7 @@ pipeline:
         DB: sqlite
         PHP: 7.1
   sqlite-php7.2:
-    image: nextcloudci/php7.2:php7.2-11
+    image: nextcloudci/php7.2:php7.2-12
     commands:
       - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh sqlite
     when:
@@ -232,7 +232,7 @@ pipeline:
         DB: mysql
         PHP: 7.1
   mysql-php7.2:
-    image: nextcloudci/php7.2:php7.2-11
+    image: nextcloudci/php7.2:php7.2-12
     commands:
       - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh mysql
     when:
@@ -306,7 +306,7 @@ pipeline:
         DB: mysqlmb4
         PHP: 7.1
   mysqlmb4-php7.2:
-    image: nextcloudci/php7.2:php7.2-11
+    image: nextcloudci/php7.2:php7.2-12
     commands:
       - NOCOVERAGE=true TEST_SELECTION=DB ./autotest.sh mysqlmb4
     when: