Switch durability to performance-optimized

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: I1fafda13c0fb8dbade3fd7f8464258b484545c9a
diff --git a/mbedtls-repo-scan-scheduler.yaml b/mbedtls-repo-scan-scheduler.yaml
index 6ae8b77..39994dc 100644
--- a/mbedtls-repo-scan-scheduler.yaml
+++ b/mbedtls-repo-scan-scheduler.yaml
@@ -14,6 +14,8 @@
     triggers:
     - timed: 0 20 * * *
     properties:
+    - speed-durability:
+        hint: performance-optimized
     - build-blocker:
         block-level: GLOBAL
         blocking-jobs: []