chore: update common templates (#20)

Author: yoshi-automation

.kokoro/build.sh

@@ -50,11 +50,16 @@ javadoc)
     mvn javadoc:javadoc javadoc:test-javadoc
     ;;
 integration)
-    mvn -B ${INTEGRATION_TEST_ARGS} -DtrimStackTrace=false -Dclirr.skip=true -fae verify
+    mvn -B ${INTEGRATION_TEST_ARGS} \
+      -DtrimStackTrace=false \
+      -Dclirr.skip=true \
+      -Denforcer.skip=true \
+      -fae \
+      verify
     bash .kokoro/coerce_logs.sh
     ;;
 clirr)
-    mvn -B clirr:check
+    mvn -B -Denforcer.skip=true clirr:check
     ;;
 *)
     ;;

synth.metadata

@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-11-19T22:55:20.728150Z",
+  "updateTime": "2019-11-20T18:17:37.542533Z",
   "sources": [
     {
       "generator": {
@@ -19,8 +19,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "5af83f47b9656261cafcf88b0b3334521ab266b3",
-        "internalRef": "281334391"
+        "sha": "16543773103e2619d2b5f52456264de5bb9be104",
+        "internalRef": "281423227"
       }
     },
     {