bots: Minimize races filing issues for bots

We don't need to file or check for these issues on every iteration
through the .tasks script. Lets start doing it one in every 10 times.

Closes #7825

.tasks

@@ -12,13 +12,24 @@
 # Cockpit bots.
 
 set -ex
+
+# Scan for all tests
 bots/tests-scan
 
+# When run automated, randomize to minimize stampeding herd
+if [ -t 0 ]; then
+    chance=10
+else
+    chance=$(shuf -i 0-10 -n 1)
+fi
+
 # File issues for these tasks
-bots/po-trigger
-bots/image-trigger
-bots/npm-trigger
-bots/naughty-trigger
+if [ $chance -gt 9 ]; then
+    bots/po-trigger
+    bots/image-trigger
+    bots/npm-trigger
+    bots/naughty-trigger
+fi
 
 # Any tasks related to issues
 bots/issue-scan