fix: adds api spanner team as samples code owners

thiagotnunes · thiagotnunes · commit 97d68fb44a63 · 2020-11-09T10:32:49.000+11:00
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
@@ -9,4 +9,4 @@
 **/*.java               @googleapis/api-spanner-java
 
 # The java-samples-reviewers team is the default owner for samples changes
-samples/**/*.java       @googleapis/java-samples-reviewers
+samples/**/*.java       @googleapis/java-samples-reviewers @googleapis/api-spanner-java
