DEV: Silence successful database migration output in github actions (#24416)

The output of db:migrate for a new database is 20k+ lines. We only need the output when an error occurs.

script/silence_successful_output

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Run a command and write stdout/stderr to a temporary file. Print the output only if the command exits with a non-zero exit status
+
+tmp=$(mktemp)
+
+echo "[silence_successful_output] Running '$@' with output silenced..." >&2
+
+("$@") 2>&1 &> "$tmp"
+STATUS=$?
+
+if (( $STATUS )) ; then
+  echo "[silence_successful_output] '$@' failed! Output:" >&2
+  cat "$tmp" >&2
+else
+  echo "[silence_successful_output] '$@' succeeded!"
+fi
+
+rm "$tmp"
+
+exit $STATUS