internal: fix continuous.sh

It should run integration tests, not just unit.

Change-Id: Ib96308174de4d0292cc78ab601732f2a4be40375
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/39051
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Chris Broadfoot <cbro@google.com>
diff --git a/internal/kokoro/continuous.sh b/internal/kokoro/continuous.sh
index a6896af..9cef447 100755
--- a/internal/kokoro/continuous.sh
+++ b/internal/kokoro/continuous.sh
@@ -69,6 +69,6 @@
 trap create_junit_xml EXIT ERR
 
 # Run tests and tee output to log file, to be pushed to GCS as artifact.
-go test -race -v -timeout 15m -short ./... 2>&1 \
+go test -race -v -timeout 45m ./... 2>&1 \
   | tee $KOKORO_ARTIFACTS_DIR/$KOKORO_GERRIT_CHANGE_NUMBER.txt